I have a set of Outlaw Grips on my Uberti New Model #3 and I believe they could fix you up with whatever you wanted. The wensite www.outlawgrios.com
states "Over forty hardwoods & burls, giraffe bone, and elephant ivory are available" My grips are just a plain grain walnut with a nice fit and they feel good in the hand. If nothing else the website has a lot of pretty gun pictures.
Regards from Texas,