If these cold winter days have you cabin bound and you need a hobby to keep yourself entertained, then try making a coin ring. The one pictured above is my first attempt at one. I used a copper Canadian large cent from the early 1900's. I'm not going to give a step by step process at how these are made since I still have a lot to learn myself, but to get a good idea of how to get started check out Ryan O'Shea and his blog. http://osheacoinrings.blogspot.com/ For those who don't want to tackle this challenging task, Ryan will custom make a ring for you. He's a fellow treasure hunter and coin enthusiast.
With practice and patience you can turn out these beautiful pieces of art yourself. There are so many choices of coins out there that it should be easy to find one to fit your taste. I highly recommend using cheap cull coins to practice with and as you advance you can move into using silver or gold coins.
Good Luck and Good Hunting!