Top Ten Laziest Halloween Costumes - It's Your Money - TIME.comBig Baby. All you need is a pair of adult diapers, perhaps taken from an elderly relative's bathroom closet. For added effect, pop a pacifier in your mouth and carry around a transparent bottle filled with the beverage of your choice (White Russian?). This costume works best for men who still have (or have recently regained) some baby fat—and who don't mind wearing next to nothing at a party. Warning: It might be assumed that your costume is not a baby but something along the lines of "weird fetish guy."