The annoying thing about Halloween, unless you're one of those super-costume go-getters (you know who you are) is that it's the night before some party and you realize you don't have a costume. You don't want to be a cowboy and you don't want to spend $200 on something that can't be worn again.
The solution? A costume that utilizes normal items, some of which you may have (if you have a Delorean we should hang out), the rest you can pick up at a thrift store for cheap. Don't forget your one-liners. See you in 1985, Futureboy!