If you're out there (Burning Man),you may see one of these little puppies floating around. I've just finished a whole bunch of them for a client who uses them for barter.
There is a glass bead locked within the stainless piece with two welds. The man icon has been laser-cut then formed into the shape of a sculpted heart. The other side has a round hole cutout. When light passes through the piece it lights up the man.