Wire sculpture. I got the idea from a spoon I saw once. The spoon was bent into a turtle shape, with the legs, neck, and tail folded underneath. I tried to recreate the general shape here, but in a different medium (wire). The tails weren't long enough to fold under, with led to the raised body you see here.
I used 16-gauge (I think -- I don't quite remember) sterling silver wire for the skeleton of the legs, tail, and head, and then a much smaller gauge for weaving the beads onto them. The shell part is copper sheet metal soldered to a sterling silver bezel. I drilled holes into the top copper piece for the wire of the shell to go through. The beads are whatever I found in the bead box that I liked. They're mostly glass.