Top Funny 3D Printing Ideas and STL Files to Brighten Your Day

Looking for creative and funny 3D printing ideas? Explore our curated list of the best humorous 3D print models and STL files — from clever desk toys to hilarious prank gadgets you can actually print at home
Whether you're a beginner looking for easy prints or an experienced maker seeking challenging projects, this collection offers something for everyone. All STL files are ready to download and print, with detailed information about each model to help you achieve the best results.
Featured 3D Models in This Collection
Here are the 36 carefully curated STL files in this collection, each tested and verified for quality:
1. 3D Printed Italian Mechanical Gesture
Bring a touch of Italian flair to your desk with this fully 3D printable fidget toy, inspired by the iconic “Italian hand gesture.” Designed with a clever mechanical system, it features a functional 3D printed spring
2. 3D Printed Pokemon Psyduck Coaster
Following the Squirtle coaster, the Psyduck coaster has arrived
3. 3D Printed Skeleton Hand: Halloween Self-Adjusting Coaster
Let this Skeleton Hand handle your drink! This is mostly print-in-place, self-adjusting coaster, that needs NO supports.
”Mostly” because whole hand with mechanism is Print in place, the only part printed separately is the round pad, which you just need to place on top of the hand.
Additional accessories include a handcuff with a chain and a manacle, which you can easily snap onto the wrist of the hand for an extra visual touch!
Clearance between moving parts is very big, so every printer should print this design without any problem.
The Hand Coaster automatically adjusts to the size of the object, it can grip both a mug and a standard aluminum can.
4. 3D Printed Surprise Coffin
It comes with 2 skeletons - a good guy and a bad guy, and several cover types . The coffin is a print-in-place with 3MF files included with a very small amount of waste , But you can color it with a regular printer as well by switching colors mid-print!
Please read the instructions:
Printing:
The MF skeleton requires supports only under his hands, create some manual supports for this (Although it might print well without)
Coffin: No supports, No Brim, Very good adhesion is needed and be careful of warping if you don't have enclosed printer. If you print using AMS - you can disable prime tower to save some filament.
Mattress: Create a custom support for part of the lower area if it falls. Do not print it laying down as quality will be worse.
Covers - All require supports for the bottom, with AMS you can remove prime tower.
For all coloring with a regular printer you can swap filaments mid-print to get same results.
5. 3D Printed Bad Carrot
With that being said - A new bad member is joining the family! Meet Bad Carrot! This one is a little different then Avocado & Peach as it was not really possible to hide the hands inside the carrot in the same way as previously, So I made something completely different. It's multi-part so no AMS/any other Multi-color is required.
Printing & Assembly
Print the carrot with Organic / Tree supports where necessary.
All other parts do not require supports.
When printing the Pot_Cover make sure you have a single layer line for the openings - take a look at the included image. This means if you are scaling it up, make sure to push the model beneath the print bed if it becomes 2 layers or more! Your first layer must be flawless.
Attaching all parts may require some glue.
Assembly is super easy with every part fitting it's place, you might want to use some glue to connect the parts and you probably should use some for the Pot_Cover
6. 3D Printed Squid Game Mingle Song Fidget
Plays 4 songs from Squid Game
Plate 1 plays Red light, Green light
Plate 2 plays Pink Soldiers
Plate 3 plays Way Back Then
Plate 4 plays Mingle Song
Plate 5-8 are optimized for single colour printing
Remove the Brim before assembly or remove the brim before printing if you have good bed adhesion.
7. 3D Printed Flexi Corn Cob - Pencil case
Flexi Corn Cob is perfect pencil case and a fun fidget toy. Since it’s designed to be printed in place without supports, it should be a straightforward print.
Please dont print the whole model - test your filament first. I would strongly recomend to use new spool for this model.
Easy way to open it - is to deacrese your normal printing temperature by 5-10 degrees.
Please dont use sharp tools.
8. 3D Printed Banana Fridge Magnets
Stackable Banana fridge magnets. Put a bunch aside when you don’t need them.
Single and multi-color printing models are included as STL and 3MF! They work with all current and usual multi color setups.
Instructions
Get 10 x 2 mm neodymium magnets, preferably in N45 or N52 strength. You will need two per banana. It might work with 10 x 1 or 10 x 3 mm magnets, too - but that is not tested.
Print as many bananas as you want. 18 of them form a full circle.
The little magnet cap is optional - It is 0.4 mm thick and will add to optics but reduce strength slightly. Decide if you want to print it or not and proceed accordingly.
Print the inserts. They have a small cut that serves as rotation help when aligned with the small cut inside of the bananas hollow part. There are two sizes provided. Depending on your magnet tolerance and cap choice, one of both will work fine. If you are not satisfied with the alignment, you can scale the insert slightly.
Glue the parts into the banana in this order: Magnet, Insert, Magnet, Cap (optional).
For each consecutive banana you need to make sure that the magnet alignment is correct. You can easily do this by assembling one top of your original banana. When inserting the bottom magnet, you can already feel if it is rotated correctly.
Enjoy!
Size of one banana: 73 x 45 x 18 mm
9. 3D Printed Crazy Nose Organizer
Need a solution to organize your paper pins? Check out this crazy nose organizer!
10. 3D Printed Iphone 15 Pro Max Case - Sliding Middle Finger
iPhone 15 Pro Max phone case, I'm creating a line of Sliding Cases and I started with this fabulous and funny case. It's truly functional and I recommend printing it in TPU, the finger in standard PLA.
11. 3D Printed Valentine's Daisy
Just like Breakup Daisy - Just won't get you in trouble Same instructions and tips as in the previous model.
The heart comes also in a clean version so you can embed your text on it - The Daisy can then hold it.
12. 3D Printed Funny Turtle Cup Holder
Turtle cup holder needs NO supports
can also used for candles
(the color of the model is depend of the color of the filament i colored my version manually)
Because of the difference in accuracy between 3d printers if the parts don't fit you can drill it or you can cut small parts of the plastic until it fit.
13. 3D Printed Squishy Turtles
The model assembles with the printed H-Clips and needs no glue. The parts print without the need for supports.
15. 3D Printed Labubu
AMS-free printing, incredibly cute in person, with 100% accurate facial features My materials and photography skills are rather limited, so please refer to the comments section for superior results from other creators
16. 3D Printed Articulated Hand
Articulated Hand 3D - Printable Model
This is a uniquely creative articulated hand model, specifically designed for 3D printing. Once you've completed the printing and assembly, it can flexibly display a wide variety of hand gestures. Whether it's a simple fist - making, waving, or more complex hand signs, it can achieve them with ease.
17. 3D Printed Chicken Jockey from Minecraft Movie
Build it. Print it. Unleash the chaos!
This detailed 3D model brings the Chicken Jockey to life like never before—perfect for gamers, collectors, and builders alike!
and what better time to print a chicken jockey then right befor the launch of the new Minecraft movie and for easter when Chickens are the cluck of the town
18. 3D Printed Squid Game Hide & Seek Knife
Squid Game 3 – Iconic Modular Knife - NO AMS - MODULAR - A1 Mini Compatible
This highly detailed, modular knife has been specifically designed for easy printing on smaller desktop 3D printers, such as the A1 mini. The model is split into multiple parts, making it simple to print even with limited build volume. Thanks to the connector features, the assembled knife is stable and sturdy.
The knife can be printed in multiple colors, with each part individually colorable to achieve an even more striking, film-accurate look.
19. 3D Printed Labubu Leader
Optimal Color Selection: Body – Bambu Cocoa Brown; Face, Ears, Feet – Bambu Apricot; Eye Pupils, Eyewhites, Teeth, Dorsal Fin – White PLA; Freckles – Any black PLA filament, insert and trim as needed.
This version features: Optimized hair, positioning holes added to hands and feet for simplified assembly, and three rotatable eyeballs. Eyeballs are available in two versions: a fully disassembled version, and a multi-color version for those who prefer less assembly. Print as needed!
20. 3D Printed Pickle Sickle
Dont ask, and you shall receive! Introducing the Pickle Sickle, a collapsing curved short sword located neatly inside a plastic pickle!
21. 3D Printed iPod – Engineered for Zero Purpose. Designed for Maximum Clicks
I loved my iPod Classic when I was younger - this design is my way of bringing back the satisfying feel of its iconic click wheel and paying tribute to a legendary Apple product.
Inspired by the nostalgic design of the iPod Classic, this 3D printed fidget toy features a rotating dial that produces tactile clicks with every turn. It even emulates the classic menu animation with a moving blue highlight ribbon.
22. 3D Printed Demon Core
A small replica of the infamous "Demon Core" experiment. Not made to exact proportions, meant to be a "fun" little desk toy. Don't forget your screwdriver!
23. 3D Printed Marblevator, Emoji
It's difficult to determine whether this animated "Marblevator, Emoji" emoji has "telekinetic powers" or is just amazed at the apparent physics defying properties of the marble track. In any case, the grandkids enjoyed it and that makes my very happy!
As usual, I probably forgot a file or two or who knows what else, so if you have any questions, please do not hesitate to ask as I do make plenty of mistakes.
Designed using Autodesk Fusion 360, sliced using Ultimaker Cura 4.12.1, and 3D printed in PLA on Ultimaker S5s and an Ultimaker 3e
24. 3D Printed Small Slinky Snake
Description
I've always wanted to try designing a 3D printed slinky, and what could be slinkier than a snake? It can stretch out to a full meter in length. It prints standing on end, using tree supports that form a cradle for the tail to keep it stable.
Post Printing
DO NOT just try to yank this apart after printing - the coils are easy to kink. First, remove the tree support base - it should break free pretty easily, but you can use cutters if necessary to help break it away.
Then, to free up the spring, gently poke a thin blade, like a pocket knife or xacto knife into the gap between the coils and then then work the blade along the entire length of the coil to free it up. I actually used the back side of an xacto knife blade rather than the sharp edge, wiggling it a little as I went to break the coils free.
25. 3D Printed Tralalelo Tralala
design of Tralalero tralala
The shoes and tail fins are separated for fast and optimal printing.
The eyes and sole are painted with a black marker to save filament and printing time.
No printing supports required.
Glue is required to attach the shoes.
26. 3D Printed Lipstick with Funny Surprise
This fake lipstick will surprise you and your friends, when you operate it a fake lipstick comes out then an emoticon of your choice appears as if by magic! Guaranteed laughs
Easy to print in PLA, assembly is shown in the animated gifs, in the photos.
It is necessary to properly break in the parts before final assembly and lubricate the movement with Vaseline, grease or paraffin, this makes it very pleasant to use.
27. 3D Printed Tung Tung Tung Sahur Brainrot Model
Tung Tung Tung Sahur is an italian Brainrot meme.
It is a bat with face.
Hope you like it
28. 3D Printed Roflex Watch
Tired of traditional timepieces reminding you of the hour? Embrace originality with a truly unique watch!
No numbers, no time: This watch will never tell you the time. Instead, it adds a dose of fun to your day!
Customizable emoticons: Thanks to its special mechanism, it can dispense small balls or emoticons like a heart or thumbs-up with each press.
Included accessories: The files include a box containing a dozen emoticons to choose from. Additionally, a stylish display stand for the watch and a special box with projectiles are also included.
Also included is a TPU-printed bracelet in addition to the PLA-printed one.
29. 3D Printed Springy Cute Giraffe
This giraffe figure is both fun and eye-catching with its flexible and springy neck design. The movable neck sways when touched, creating a dynamic image. It can be used as a minimalist and modern decoration piece or a creative toy. This model, which can be easily produced with a 3D printer, fascinates users of all ages with its design.
30. 3D Printed Funny Squirtle Coaster
Printing Suggestions:
It is strongly recommended to print the “Head Optimized Version”, as the previous version may experience adhesion issues
31. 3D Printed Automated Ice Skating Polar Bear
It's been a while since my last (and first) two creations, the Inchworm Caterpillar Automaton and Koi Fish Automaton. Ever since, I've had a third animal-themed mechanical piece in mind to complete a trio. And guess what, this is not the one!
Instead, I was inspired by the basic mechanics of a braiding machine, with the idea to make some kind of figure skating creature, which I thought would fit nicely with the Trip To The North Pole contest.
The inchworm and the koi fish were entirely made using CAD software. And while they do their job in conveying the basic idea of the respective animals, I knew this one would need some more detail to really work. So this time I challenged myself with learning some 3D modeling using Blender. It's not my strong suit, but I think I managed to make some pretty cute bears in the end, after a lot of trial and error.
So here's two polar bear friends figure skating on an ice floe!
Printing
As usual I used mostly standard settings, only changing to gyroid infill and lowering the infill percentage to 10%. The model requires no AMS and no supports.
The only thing to keep in mind is that the polar bears - while designed to be printed without supports - really benefit from using adaptive layer height to smooth out some of the steeper overhangs. My print profile has the bears printed by object instead of by layer, and adaptive layer height slider set to maximum quality, with additional smoothing. If the Polar bears fails despite this, I'd recommend using slim tree supports on the print bed only.
Ironing for the base and the cover is also very beneficial, but obviously takes a lot of time, which is why I left it out of my own print profile
32. 3D Printed Mr Krabs Fridge Magnet
Guess who was jealous of his friend with such a thick a** ? Yes, Patrick! So he has joined Spongebob at the gym, and he is pretty strong too! Now he can hold your things with his cheeks next to his best friend Spongebob, and your fridge will be Bikini Bottomed.
33. 3D Printed Knight Chess Piece Impossible Passthrough
NO AMS NEEDED
Printed in two parts
Tree supports needed
34. 3D Printed Spiral Light Bulb
Variation on Spiral Fidget
This is not as simple a design to print as it might seem. Start printing LampExt.stl first, usually problems arise with this file, the part breaks in the base area. It seems to me that this is due to the plastic itself and or printing settings.
35. 3D Printed Funny Lighter
Turn your conventional lighters into a fun lighter.
Simply place the lighter and trigger into one of the gun halves and close it.
36. 3D Printed Minecraft Grass Fidget Toy
Get ready to level up your fidgeting game with Fidget Cubes Minecraft Edition!
Choose from Dirt, Grass, Ore, and Creeper versions to suit your style.
With various profiles available for heavy, light, and more tolerance,
you can customize your fidget cube experience.
Each pattern also comes in an "all over" version, so you can enjoy the
Minecraft vibes from every angle.
Get your hands on these unique fidget cubes today and let the fun begin!
Ready to Start 3D Printing?
These 36 STL files represent some of the best 3D printable models available today. Each file has been selected for its quality, uniqueness, and printability. Remember to check your printer settings and use the appropriate materials for the best results.
Pro tip: Always preview your STL files in your slicer software before printing to ensure optimal orientation and support placement for the best quality prints.