Coin Fidget Spinner with Half Dollars

thingiverse

I created and printed a fidget spinner using six Kennedy half dollars, making it at least a $3 investment. These coins are almost too big and a bit too heavy, but the spinner still spins smoothly. The fit works well most of the time, and I haven't had to use glue to keep any coins in place, although that would be an easy fix if needed. I experimented with several designs for the center section before settling on a simple one – it required some sanding to get the right fit without glue, but I designed them so they can meet in the middle and be glued together if necessary. I used a ceramic 608 bearing; you can find similar ones at https://goo.gl/Zq7kxN.