gallstone

One particularly unusual do-it-yourself project published online demonstrates how gallstones can be incorporated into pendants almost like tiny pearls.

And perhaps that's what makes this so fascinating.

Gallstones can actually resemble little gemstones, you know, ranging in different colors from yellow, brown, black, depending on their composition.

But if nothing else, these creepy creations prove that one person's medical waste really can become another person's fashion statement.

And believe it or not, our next piece of jewelry takes the idea of unusual materials to a whole new level.