Not only did I fire blue some parts on a SBH (this on also got a brass grip frame), I replaced most of the parts on another SBH and a BH (.30 carb) with stainless parts.
I bead blasted a couple of rings on a New Vaquero cylinder since I don't have the capability of inlaying gold rings.
I have a stainless OA that I replaced the grip frame with an OMSBH brass frame. The existing grip frame on ROA revolvers is just too small in my opinion. Besides, I like the contrast with the S.S. and brass.
I apologize for the out of focus photo but none of the in focus photos show the nitre blue parts. At least in this photo you can see the color.

I blued all the screws, the base pin and the ejector.