Few categories of 3D printing are as popular — or as fun — as toys, fidgets, and action figures. They’re quick to print, make great gifts, and double as a way to test how well-tuned your printer really is. Here’s a look at what’s trending in 2026, from print-in-place fidgets to articulated figures.
Print-in-Place: Why It’s Taken Over
The biggest shift in 3D printed toys has been the rise of “print-in-place” designs — models where the entire toy, including every moving joint, hinge, or gear, prints as a single piece with no assembly required. Small gaps built into the design allow parts to move freely once printing finishes, meaning a toy comes off the printer essentially finished and ready to play with.
Getting these tiny gaps right depends on your printer’s calibration, layer height, and cooling settings — which is part of why print-in-place toys have also become a popular way to test and dial in a printer’s accuracy.
The Infinity Cube: The Most-Printed Fidget Toy
The infinity cube remains the single most frequently printed fidget toy worldwide. Made of smaller cubes connected by hinges, it folds and unfolds in a continuous, endless motion — making it both visually satisfying and genuinely calming to handle during long work or study sessions.
Other Popular Fidget Designs
| Design | What Makes It Popular |
| Flexi dragons | Print-in-place articulated dragons with dozens of interlocking joints for fluid, serpentine movement |
| Joystick fidgets | A ball-joint mechanism that glides smoothly under your thumb, often with an adjustable-tension threaded base |
| Gyro / concentric ring fidgets | Stacked rings that spin with a hypnotic, layered effect |
| Mechanical keyboard-style clickers | Compact designs that replicate the tactile click of a keyboard switch, sometimes with adjustable click profiles |
| Squishy D20 dice | A 20-sided die designed to squish and roll, doubling as a fidget toy and gaming accessory |
Action Figures: Articulation and Customization
3D printed action figures have moved well beyond simple static models. Designs like “Dummy 13” — a fully articulated figure built for dynamic posing — combine expressive joint movement with modular parts that can be customized or swapped, letting makers create their own poses and variations rather than printing a fixed design.
This modularity is part of a broader trend: rather than printing one fixed character, many popular action figure designs are built as customizable platforms, where makers can mix and match parts, accessories, and color schemes.
Materials: PLA vs. PETG vs. TPU for Toys
- PLA: Budget-friendly and easy to print, good for prototypes and most static or lightly-handled toys
- PETG: More durable with slight flexibility, better suited for toys that will see heavy or repeated use
- TPU: A flexible filament best for parts that genuinely need to bend or stretch, such as certain fidget mechanisms
For fidget toys specifically, PLA can warp or deform in high heat (such as inside a hot car), so PETG or ABS are better choices if heat resistance matters.
Where to Find Toy and Fidget Files
Printables, Thingiverse, Cults3D, and MakerWorld all host large libraries of toy and fidget designs, including print-in-place models with tested, creator-recommended settings. When choosing a file, checking download counts, reviews, and comments for printing tips can help avoid common issues — and many fidget and toy designs include specific settings recommendations to get joints and mechanisms moving correctly on the first try.
Frequently Asked Questions
What is a print-in-place 3D printed toy?
A print-in-place toy is designed so the entire object — including all moving parts like joints, hinges, or gears — prints as a single piece with no assembly required, relying on small built-in gaps that allow parts to move freely once printing is complete.
What’s the most popular 3D printed fidget toy?
The infinity cube is widely considered the most frequently printed fidget toy, thanks to its continuous folding motion and relatively simple, satisfying mechanism.
What filament is best for 3D printed toys and fidgets?
PLA is the easiest and most budget-friendly option for most toys, but PETG offers more durability for heavy use, and TPU is best for parts that need genuine flexibility. PETG or ABS are better than PLA if heat resistance matters, since PLA can warp in hot conditions.
Are 3D printed action figures customizable?
Many popular action figure designs, like fully articulated modular figures, are built as customizable platforms — allowing makers to mix and match parts, poses, and color schemes rather than printing one fixed design.
Where can I find 3D printed toy and fidget files?
Printables, Thingiverse, Cults3D, and MakerWorld all host large collections of toy and fidget designs, many of which are print-in-place with creator-tested settings included.
Final Thoughts
From the endless folding motion of an infinity cube to fully articulated action figures with swappable parts, 3D printed toys and fidgets continue to be one of the most rewarding categories for makers — quick to print, satisfying to use, and a great way to put a printer’s accuracy to the test. With print-in-place designs lowering the barrier to entry and huge community libraries of free files, there’s never been an easier time to print something fun.