- Prince William & Kate Middleton (or Prince Charles and Camilla!)
His costume: A suit will do, but bonus points if you can recreate the Irish Guards uniform Wills donned for the royal wedding with thrift store finds.
Her costume: There's a smorgasbord of options here, from the famous Sarah Burton wedding gown to the pictured red suit. Almost anyone can find a smart-looking suit or dress, but it's not truly Kate without the matching purse, gloves and shiny brunette mane.
His costume: Either a Bert or Ernie mask; dorky sweater.
Her costume: Either a Bert or Ernie mask; dorky sweater.
His costume: White tux. Bling. Yankees hat. Perhaps not all three in one costume.
Her costume: Glittery jacket, opened up to reveal...a baby bump.
His costume: Whatever schlubby men who could care less about their appearance wear. See Woody Allen.
Her costume: Rock the bookish menswear a la Diane Keaton.
- Robert Pattinson & Kristen Stewart
His costume: White face paint. Fake blood. Black trench coat. A lot of black.
Her costume: White face paint. Fake blood. Sexy black bandage dress.
- Johnny & Baby from 'Dirty Dancing'
His costume: Black sleeveless tee and pants. Mullet. Dancing shoes.
Her costume: Slinky dress and dancing shoes -- or cropped button-down, tight jeans and dancing shoes. Keep it strictly 80s with the perm.
His costume: Who could forget Michael Cera's burgundy track suit and headband? Add a medal or two for good measure.
Her costume: Jeans. Cardigan. Black nail polish. Huge pregnancy belly. Don't forget the trademark snark.
- Rhett & Scarlett from 'Gone With The Wind'
His costume: A classic suit. Slicked-back hair.
Her costume: Green velour dress with hoop skirt. Corset. Corkscrew curls. Plenty of attitude.