Re second marble. I wouldn't have thot about it as a pelt until the other day when another cat was ID'd as a pelt as well. What about them makes them uncommon? The one thing that stands out for me is the base glass. Would have been easier to spot in the cats if it had had bubbles!! While I'm on the subject of pelts, I noticed on one thread on MC there was mention of a pelt canary. I have never heard of that b/f?
I haven't seen many blue ones is the only reason I say it's not common. It only has 4 ribbons, right? If more, it might not be pelt. I don't think I ever heard of a Pelt Canary.