If you decide to go to a costume party at the last minute, you have mere seconds to whip together a costume. Got an old sheet? Go classic and turn yourself into a ghost. Or, if you're a bit more ambitious, rip open that extra package of toilet paper and have a friend help you transform yourself into a mummy. With old clothes, makeup, and fake blood, become a zombie worthy of The Walking Dead. Steal one of eBay's last-minute Halloween costume ideas and turn it into your party success!