I had a few people tell me that my shuriken spinner was a bit too big for their hands. Well, I had a few 624 bearings laying around for my double pendulum spinners, and I decided to make a version of my shuriken using those 624 bearings!
If you don't have a 3D printer but still want my design please consider checking out my etsy.
Monoprice Maker Select Plus
The caps are really tiny so you may not be able to get the details printed out at 0.2 mm, so try 0.1 mm for them.