I lucked into this stunning vintage celluloid necklace on eBay recently. Celluloid predates Lucite as a plastic used in costume jewelry, and this carved variety is very hard to find. This piece must originally have been navy blue, but it's aged to almost-black. Celluloid can dry out a bit, and as you can see in the detail photograph there are a couple of beads on this strand that have hairline crackling on the finish. I still think they look amazing. I can already tell I'm going to hoard these carefully, but I can't wait to come up with a new design to use them!