I am trying to make a keychain with an old silver half dollar on it I'm not to keen on brazing a post or threads on the back as it would deeply wound me to deface a beautiful piece of history. So I had the thought to make a simple key chain that's all one piece and folded over with a cutout for the coin my only issue is how to properly mount it. So in summation I would have a keychain that is bigger than the coin with one of the two layers of leather cutout to fit the coin into. Thanks for any help and advice.
~Josh