I made this small handheld magnetic sliding decompressor, and it’s really addictive.

Print Instructions:
You need 6x3mm magnets (12 pieces).
Use a textured PEI printing plate for the smoothest sliding experience.
When using a layer height of 0.2mm, pause at the start of layer 20 to insert a magnet.
Check the magnets

I found that if the magnets aren’t stuck in place, there might be a bit of noise, but not using glue doesn’t affect the design or functionality.