I ran across an article about an artist who "paints" with charcoal dust - on her fingertips! I mean, the theory in itself is cool (if you've ever worked with charcoal, you know how messy and dusty it can get, and how it's all over your hands!) but not only does she use this kind of off-beat medium, she maked friggin' full out murals that way.
Check out some more of her work and read the article
here. I thought it was super interesting, and really beautiful, so I thought I'd share. :)