Above - El Paso Saddlery.
Above - Southern Holsters - the carved skull looks WAY cool.
Above - Tucker Gunleather - they seem to have a different way of carving holsters - doesn't look like anyone else's.
Above - Mernickle custom holsters. I have three of his western rigs for my revo - carving belts and holsters seems to be a specialty of his.
EDITED:
DM Bullard