I don't wanna sound like a hillbilly or nothin', but down the street at the National Zoo today, they had a big Halloween party for zoo members, and I swear, only one kid didn't have a store-bought costume. Back when I was a boy... but that's for another post.
Anyway, it hit me when I read Mary Elizabeth Williams' article about the trials of hip parenthood: the ideal Halloween costume for a baby should incorporate their baldness. Consider it a positive for once rather than a shortcoming (that requires fixing by taping bows to the kid's head).
Here's a quick list: