Here's a link to some of the interesting things seen at the gun show. A custom knife maker was selling this stuff thought it was interesting. There was Ivory, Black G 10, Canvas Micarta, Camel Bone in various colors, Mammoth Ivory, Buffalo Horn, Stuff for buffing and polishing. Some of his prices seemed high but I am not sure as I have no experience in this area. His Ivory was to small for scales though not long enough. He said he could get longer pieces, what he had was for a knife handle.

Gun Show stuff - a set on Flickr