King of the Wild Things
As previously mentioned, dressing as a children’s book is a good way to think outside the box and come up with a costume that no one else will have. Where the Wild Things Are is a very popular children’s book that was recently made into a movie. You can scroll down to see what a costume like this might look like.

Wow. This costume is amazing. There is no way that this individual didn’t win the local costume contest! They even made a cute little miniature costume (just like the one in the book) to get their kid involved. This costume is so good, hopefully, the little one wasn’t scared when they turned around to see a wild thing instead of their parent!