This was sculpted in modeling clay and then cast with tinted epoxy. I made the mold using Smooth-On's silicone mold stuff. it is pretty easy to use. I haven't sculpted anything in 20 plus years but I think I've got a knack for it. The first cast went to a friend, who hung it on the wall. It could be made into a necklace, though I think I might make a collection of bird heads and figures for the wall.