Roly-Poly rollers
thingiverse
A Roly-Poly roller is a physics toy that moves and rolls in fun and unexpected ways. Here are some files (ai or svg) for laser-cutting or hand-cutting to make different shapes of rollers from a 2L plastic bottle. Use with a 1" diameter ball bearing.
Download Model from thingiverse
With this file you will be able to print Roly-Poly rollers with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Roly-Poly rollers.