Halloween // any disney costume ideas for a group of 7 at disneyland?

There are 4 girls and 3 boys, but we don't really mind gender for costumes. We have done a lot of costumes in the past, which makes it difficult, as we dont really want to repeat costumes. We have done: toy story, incredibles, ducktales, haunted masion, muppets, various disney rides, star wars, pirates of the carriben, and monsters university. Please comment any suggestions!