Ignorant Leather Question

The problem is multi-facted. Leather is always tooled laying flat, so the holster would have to be deconstructed, wetted and flattened. That's going to be a problem if the main seam is glued, which they usually are. Most also have an acrylic resolene finish which not only presents a problem in getting it wet enough to flatten but also to tool it. Then there's the issue that a great many mass production holsters are "baked" to solidify their shape. May not even get it to flatten. In a nutshell, I'd recommend saving your pennies and buying a fancier rig. El Paso Saddlery will pretty much floral carve anything they make. I have this carved Tanker rig and Dad has a carved Spyder shoulder rig.

Weaver Leather sells some stamps that would definitely suffice, but Craig already gave you the bad news.

Let me add another "not to try this" reason. Even if you could get it flat and properly cased no one just picks up some stamps and does a good job with their first try.

OTOH, the good news is you now have a VERY important reason to buy a new, properly tooled quality holster. You know you want to ...

-jb, enabler-in-training

Or, get a big piece of leather to practice on with enough left over to make an entirely new one.