I found this on reddit.com/r/3dprinting, its a cool demo of using woodfill filament. It’s has a very uncanny valley affect from the pictures.
http://i.imgur.com/6MG23Ae.jpg
Here’s the source: https://www.reddit.com/r/3Dprinting/comments/3x3oov/testing_out_3d_printed_wood/
http://www.thingiverse.com/thing:1205741/