What are some fun halloween costume ideas?

What are some fun Halloween costume ideas? I always dress the same: witch or rockstar. Do you have any good, fun, and/or original ideas?

Try being a ghost or do what my cousin did and be an Umpa Lumpa from 'Charle and the Chocolate Factory'lol. A few years ago I was a mime, imagine trying to say trick-or-treat when you can't talk! So I had my mom write it on my forehead. Have fun with your costum or even make something for yourself out of old clothes; you don't have to have a name for what you are you just have to be able to dress up. Have fun!
~Alanna

I'd say a witch