I picked up a cute sun charm at an antique store and I love it, but it doesn't match with ANY of my chains! They are all shiny and new looking, and the charm is tarnished and older looking. How can I find a charm that is going to match it, or should I just put it on a new chain? Here's a pic of the charm, but I really doesn't look as good as it does in person. The charm is about the size of a nickel.