I want you to show you two of my prized possessions. I got these years ago, and they've been hidden away in a box in my dresser ever since, because while they are amazing and cool and I love them, they're all so ancient, fragile, and totally impractical.
The larger coin is from the reign of Elizabeth I, and the smaller one in the badly-fitting coin holder / necklace thing, is from Henry VIII.
I can't believe I own something this old. I like thinking that my characters could have handled these coins. One of these days, when I have the spare cash, I would like to pay a jeweler to make a proper necklace from them, with the kind of holder that allows the coin to float, so it doesn't touch your skin.