Perry, the bone on Scott's knife, does look a lot like Mastadon ivory. Wish I could say I aged it that way on purpose, but it did that just from the enviroment it was in for the past 15 years. I ended up with about 3 or 4 pairs from that same batch of bone that look like that. The rest of the slabs came out with some nice internal marbleing, but don't have that brown outer bark.
I have to give kudos to Kaleb for his mini tutorial on cutting up bone. Before that, I had pretty much written off my bone pile. He showed me that there was alot more usable stuff there then I thought.
Thanks for the compliments on Scott's knife guys, I feel like i'm startin' to get a grasp on how it's done. Of course, it doesn't hurt to have some nice material to work with, and it was already a pretty cool old knife before I did anything to it.