My least common cat names are Raisin and Sundae. There was also my RB cat, Scampers, that name isn't too common either, though it seems like it should be.

Two of my favorite PT cat names are Rumor and Smitten.

Some other names of cats I know are- Bigglesworth, Two Toes (named because she has 2 extra toes), Can Can, Crush, Loki, Punky (full name is Punky Brewster, she's a calico), & Cricket. I know there more cats I know with unique (or at least less common) names, I just can't think of them at the moment.