Short post, but browsing through a gallery of photos from the 2008 North American Handbuilt Bike Show, I saw this picture:
The bike frame is made out of bamboo- it's by Calfee Design, who specialize in carbon fiber frames- here is the link directly to the Bamboo line. I think the bull horns make it.
I don't know this person that took the picture, but if you're interested in bicycles check out his gallery I linked above.
I'm getting a touring bike if the stars align- I'll post pictures when it happens.
Erick