Okay, thinking back on all the Halloweens, a couple conventions and so on, here’s the stuff I can recall:
Conventions:
Princess Leia (White costume) at ComiCon last year,
Leia (Slave costume) same place for a very short time,
Halloween:
Leia Hoth outfit,
Miraculous Ladybug,
Robin (female version of Batman’s sidekick),
Mitsuha Miyamizu,
Old hag,
TinkerBelle,
Cinderella (when I was 6 years old),
Ahsoka Tano,
Jedi Knight (generic).
Other:
Belle, as a work-related thing.