Living Tattoos

I'm working my way through a fantastic set of "HeroMachine 101" lessons Hammerknight sent in, which I'll probably start next week. But meanwhile, frequent commenter "Me, Myself, and I" put together this really cool recipe for how to do a "Living Dragon Tattoo", a neat effect I don't think I've seen before:

His secret how-to guide after the jump!

Thanks a bunch, MMI!