I wanted something different that would be a conversation piece when I was shopping for more Oakley!!!! I had these custom made a few years ago by my jeweler. The top one is the scatter skull, it was cast from a mini skull removed from the old black clip lanyard. The bottom one, was cast from the "O" logo on the large ballistic zippered vault. Both are solid. I am working on casting the small skull from the small 3d skull sticker, which is about 1.25" X 1.25". My other idea was casting either the new XX or Juliet coin.