Somewhat uncommon: Brachyrhamdia Meesi catfish, two amblydoras nauticus catfish, an orinocodoras eigenmanni at 9", a wild caught peru Oscar, false jaguar (liosomadoras morrowi at ten years old), a true albino chinese algae eater, SB jade goby ( are only two in the US that I know of), SB paratilapia polleni, gold dust bichir.
Certain crayfish, albino BN plecos...
You tell me if any of that is rare or uncommon. I don't know. It seems my area has lots of good oddball activity compared to many other places.