Some of my favorite characters from the Cantina scene from ANH.
Hem Dazon (oddly shaped puppet head that pops up in the beginning of the scene)
Labria (the grinning devil alien)
Leesub Sirln (The Weird Girl)
Muftak (Fuzzy four-eyed bug alien)
Ponda Baba ("Walrusman" who gets mutilated while trying to beat up Luke Skywalker in a bar.)