Century Hawk
Fidget Spinner. Looks good,but spin is off a bit because of the lack of radial symmetry. I originally made this in 2 parts (top and bottom) and then glued them together, but the top piece has to be printed with supports. That worked pretty well, but I wanted to make one without supports so I made the 1 piece.
I put in a common 22 mm (skateboard) bearing.
I also use 6 5/6 hex nuts.
Both the bearing and the hex nut openings are designed as interference fit and have to be hammered in.
The bearing is greasy and will slide out if you use it a lot or get rough. You might clean the grease off of the outside to help it stay longer, but I just used the Simple Bearing Cap from Very Customizable Fidget Spinner to make it easier to hold and to keep your fingers grease free.