Thank you! They're ribbon with a subtle decorative design, and the centers are found appliques consisting of a tiny mirror in an embroidered frame. I'm so paranoid about losing them because I've never seen them anywhere since I bought them. I love them because they are able to match the inconsistency in the film, in which the centers of San's dots change color from black to white to skin tone.
Thanks, that's a gracious compliment! I'm not a perfect physical match for San but I worked hard to make the costume look as much like the film as I could. There are still some improvements I could make..