As someone who owns a bunch of 3" and 5" Smith & Wesson N-frames, I was tickled pink to find a link to this website: Simply Rugged Holsters.
I reckon I'll put in an order for a sharkskin holster for my 5" 625 next month. I'll let y'all know how it goes.
I have to tell you, this guy has found a good niche market. If you have a 3" or 5" N-frame (or a Redhawk or Anaconda) your holster options from the big name mass production companies are somewhere between slim and none.