We're not allowed to do anything Halloween related at work due to parents complaining. So instead, we have "Wacky Day," where the teachers and students dress up.
Since a lot of the teachers and kids think I look like him for some reason, I dressed up as Harry Potter. It's an easy costume (Gryffindor school uniform: white undershirt, Gryffindor tie, gray sweater over it, and black pants) to do, and I still look professional.