Flexagon

thingiverse

This is a solid 3D version of the Paper Flexagon. I have designed it, so each segment are identical. I will add a link later to a video of it. This thing is very addictive to play with. Instructions Print 6 copies & link together into a loop. Then you can roll it around onto itself. You may need to drill out the holes. The hole size was chosen to fit a standard paper clip. Have Fun