We need our shop topic back. :(
What about beauty mark patches to put on your face, with a limited number of uses. They could be in different shapes and colors and show up like face painting.
Miryam Antoinette, A silver beauty patch shaped like a star by her mouth, a blue beauty patch shaped like a tiny ship by her right eye, a black beauty patch shaped like a hand on her -- oh, no, wait, maybe not that.