A modification of Zack's Shrink Ray tile where the 5mm bearings can be stored. The ray gun is a separate piece for multi-color printing (for those that don't have multi-color printers). Filament pieces are used as dowels and/or register keys to attach the ray gun.
The sliding door can be fitted with a pair of 6mm x 2mm magnets, and there's a slot on the bottom for a pair of magnets to keep the balls from rattling around (but this might affect ball movement along the tile track). So that last part is optional.
There's also a slot in the bottom to allow you to pry out any stuck 5mm balls with a pin or toothpick.
Lastly, I modified the text of the card to be larger and have a font that feels a bit fitting for the tile's theme.
Original Tile: https://than.gs/m/863264