The Skunk who doesn't care for his own smell. The costume was poorly made but it was effective in bearing the most questions asked about it's meaning. Although, a costume that requires a full sentance to describe it may not be a costume at all.
Chris may have the best idea of all that may remedy this issue. Rather than one person being a complex characer, have the whole group have very simple costumes that toghether will require a sentence or two to explain.
I really don't care to wear a costume that doesn't need some explanation. Unless that costume is some amazing replication of some image. Otherwise it seems boring to be a Pirate or "Superhero".