Iron Man Hand Spinner
Hand Spinner are great, but what about an IronMan Spinner?
It fits 22mm bearings.
For a better spinning i suggest to use good and effective bearings.
For the central cap, you need to use glue to paste 2 different parts together.
For full color print it is not necessary a dual extruder printer, infact you can change color in the z axis.
Enjoy your no-stress time!