This Robocop pendant is made of a tin-bismuth alloy, which I'm told is 'a kind of pewter' (was it Chris Rock who wondered when pewter suddenly became a precious metal?), and it has a secret compartment so that you can put your weed in it. Whatever the case, it's pretty cool - and it's rare. Only three are being made by the Etsy seller, and one was a commission. He doesn't intend to cast any more pendants from this mold, so if you're looking for a Robocop pendant in which to stash your stash, click here ASAP.