This last christmas John gave me this awesome rattlesnake head necklace from Moon Raven Design. HIs jewelry is inspired by nature with a edge - ravens, crows, wolves, bears and much more. Corvidae skull jewelry is his specialty. He used a real rattlesnake to make the master into which he cast a shrinking casting material to make a miniaturized version that was then replicated in jewelers bronze. I absolutely love it. His shop is amazing check it out for other cool skulls.