POP PILLOW – TPU Squishy Keychain fidget

This model was originally designed as a test for my first TPU print, focused on understanding material flow, flexibility and real “squish” behavior.

The lower part is printed solid for strength, while the bubbles are printed with perimeters only (no infill) to allow proper compression and shape recovery.

A height modifier is used at 7 mm so the bubbles stay hollow and flexible.

This model is intentionally printed slow. TPU behaves best when it flows, not when it’s forced.

Perfect as:

TPU test print

squishy / stress fidget

keychain toy

Material: TPU (95A tested)

Print speed: 20-30 mm/s recommended

Supports: No

Simple test… surprisingly satisfying result 🙂