Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2351317.

Fidget Spinners are all the rage right now at my son's school. I made a few of the geometric ones, but then I wanted one for myself to be a bit different. I had made this wing for another project (a necklace) a while ago, so I grabbed that model and tweaked it till I got something I liked.

This one uses the standard 608 bearings, and 7/16" - 20 Nuts from the hardware store. They are just press fit (aka) hammered with light taps into place.