These are the 5 Artist Challenge Coins I made for a recent swap as part of the 6 Degrees of Creativity Workshop created by Gretchen Miller. They were really fun to make, and I can see them becoming a new addiction!
For details, see Gretchen's site at http://gretchenmiller.wordpress.com/2014/05/10/creative-mail-art-collab-artist-challenge-coin-exchange/
I even made one for my Mom for Mother's Day.