I don't wear jewelry very often, but I was totally taken by this piece:
It has three vials on it. The big one in the middle contains a tiny octopus, preserved in some kind of solution, and the two smaller ones on the sides contain tiny dried seahorses. It's kind of disturbing, but it's also fascinating. When people notice it they're both repulsed and intrigued. It's interesting to see the mixture of curiosity, wonder and horror all coming together on a person's face, especially when they're standing close up, looking at your neck.
(My friend Simin Koernig made it. She's got a website here where you can view more of her amazing creations)