Hehe, these are so cute, and so appropriate for a keyring--since the hearthstone takes you home, it's a good idea to keep it close to your keys! Nothing like hearthing home to find you've left your keys in Ironforge
And LOL, I know what you mean about the fibers that end up in the clay. I work primarily with white clay, and every time I think my hands are clean when I start.... The clay soon alerts me to my error.