A dozen last-minute science fiction Halloween costumes (for the truly costumeless)

It's almost Halloween, and you don't want to simply wear a t-shirt, alienate your friends, or buy a craptacularly slutty store-bought costume that will drop $30 come All Saints' Day. Good for you! The only problem is that daylight's burning, and you can't waste the last 72 hours of Halloween shenanigans on elaborate… »10/29/11 1:20pm10/29/11 1:20pm