https://coub.com/view/om1q3 Back when Vine was new in 2013 (before it was shut down in Jan 2017), I thought of using Vine to give 6s lessons on things.
This was my lesson on 720 degree spin. (which you can do with your hand, wrist, elbow, shoulder combination)
Revisited it again a few months later as I started matching songs songs to notions a bit. This was a better 720 degree spin.
https://www.youtube.com/watch?v=Rzt_byhgujg This is a better demonstration but like him I was inspired by Balinese cup trick