When I was in Old Town in San Diego, I saw an artist, a local artist, painting these by hand. Actually, finger. He did custom ones on the spot for people, but I bought one that he already made. It’s on glass, and if you see it when you hold it up to the sun, certain spots glow. This was like a once in a lifetime chance. I’m not sure he has a website, and, I’m probably not going to San Diego again for a long time. This is a nice piece of art. He has been doing art for many years. I recently found out his name, Miguel Lopez Tula. If you visit San Diego soon, check out Old Town, and he should be there for awhile.