I know its not very Paleo but I wanted to post this anyways. I made this as a Christmas gift for my wife from a silver half dollar. I cold worked and filed it. It's two dolphins, their tails form a heart with my wife's and my first initial stamped inside the heart and the noses touch a bubble with our children's first initials stamped in it. You can still see the original coin writing in the rim of the ring. Trust and United being clearly visible.