Check out these deliciously morbid necklaces by Waylaid - spinal cords and bare ribs done in a really delicate silver. They're only $24 (steal!) so nab a few and wear them at the same time. The perfect mix of geek and cool, you'll have an anatomy class hanging around your neck.
I was thumbing through the pages of God knows what magazine the other day and came across these Bottega Veneta earrings. They've got this great shrapnel, industrial vibe but are still super elegant. Way out of my price range ($820) but I feel like I might be able to find something similar at vendor's table in SoHo. Just thought I'd share...