Ideas for a easy&creative Halloween costume?

Halloween is in a while but I want to figure out what I’m going to be soon. Each year my school has a annual Halloween dance.Last year I was a Celtics player- it was cheap and something easy to put together.Ideally I’d like to be able to make a cheap and easy costume again because I’m only wearing it once.

P.s: I’m 15 & a white sheet with holes for eye’s isn’t going to cut it this year ; )