Sister Halloween Costumes: The Bennet Sisters From "Pride and Prejudice and Zombies"
What to wear: If you combine a floor-length dress in neutral shades of white, brown, or green with a cardigan, a bonnet, and a fake machete, the result will be the ass-kicking Bennet sisters. Throw in smears of fake zombie blood, and then all you'll need to do is fight over who gets to be Elizabeth. . .
How to act: Proper and reserved (aka British), but ready to lob heads off the undead at a moment's notice.