The top portion of this pen is antler and the bottom is a plastic from Ed Davidson (yoyospin) on a black chrome cigar kit from Arizona Silhouettes. I made this pen just to try my new beading tool.
Another great one, Smoky. Your imagination is fantastic.
You might want to try making your own plastic blanks. I believe Ed uses casting resin. It is available at Hobby Lobby for sure. It may even be available at some of the other crafting shops like Michaels and Ben Franklin. You'll just have to explore. Make sure you get the hardener, a catylist. Color can be added in a variety of ways. Can't imagine that your blanks would be any where near the cost of ordering them.
Thanks for raising the bar, yet again, for us to shoot for. 8)