Etsy seller Rachel Rae Case makes art from human belly button lint and fingernail clippings. Pictured above is one example made from the latter:
This piece is a primitive human-like figure who seems to be dancing or chanting. It's strange anatomy: pelvis, revered leg bones large, protruding jaw and curling fingers make it one of the more detailed Human Ivory pieces I've made.
Link via Geekologie
Here's a bird skeleton: http://2.bp.blogspot.com/_a_V3dBN7AOs/R55NT76O9II/AAAAAAAAACM/vZtISumfRHk/s1600-h/bird.jpg
"Hey, you! Don't let your fingernail clippings go all over the bus! Save them, and you could create art out of them!"
think this lady was on the show Oddity on the discovery channel a few weeks ago.... she has jars FULL of toenail clippings...