Coin rolling is a fun skill and it can be practiced in many places. I often play with coins when I'm standing around waiting for things (a 5 shekel coin is decent diameter and thickness). I used to use my wedding ring which actually worked nicely, even though it's a bit smaller diameter.
True story: on vacation in Greece many years ago, I was playing with my ring and it slipped and fell over the side of a cliff. I was able to make my way down and recover it (I pinpointed which bush it fell in). A few years later, the ring broke from the constant pounding of my juggling clubs on the ring. I repaired it a couple times, but the juggling really did it in and I didn't wear a ring for the last years of my marriage. When I got remarried, I decided not to wear a ring.
by Scott Seltzer, in response to this post 2016-03-08 17:33:26