So it's the night of the party, and you still don't have a costume. If you've got 30 minutes or more, you can still whip up a surprisingly good get-up!
The first and easiest (and yes, probably lamest) option is a ghost. It's the most unoriginal idea ever, but if you've only got a few minutes to prepare a costume, it might be your best bet. If you have colored sheets, you could always say you are one of the ghosts from Pacman!
Tired of ghosts but have the white sheet? Why not tie it up into a toga and go as a Greek god or goddess?
Click on for more last-minute ideas!