Thought it would be fun to give these out to fellow cosplayers during conventions. Wanted to share this model in case it might be of interest to others.
To make these coins smooth, I used Smooth-On XTC. I brushed on Mod Podge to act as a sealant before coating it with a few layers of spray paint.
Each coin measures approximately 2 inches in diameter with a thickness of .35 inches. They can be scaled up if you want something like one of those giant pennies or scaled down to be even more portable.