Try this e-bay seller. This is Joe Dombrowski who has also advertised buffalo horn blocks in the for sale section here:

http://www.ebay.com/itm/Genuine-Hvy-3-4-...=item3a99073f5a

I recently bought an over-sized horn trigger guard that I needed to for a drilling I have. It is already shaped and polished and the tang section is left wide and thick to be fitted to your gun. I think CSMC sells these. I was lucky and found mine in a box of junk at a gun show for a very reasonable price.

Voting for anti-gun Democrats is dumber than giving treats to a dog that shits on a Persian Rug