Are you a mistress of evil, too? Then this costume is for you! You'll need to wear a black dress and craft the iconic headpiece to make this look come to life. (To re-create Maleficent's headpiece, we suggest gluing horns to a black piece of fabric and securing it around your head.) You'll then need to contour your face to create the look of (very) defined cheekbones and add a dash of red-hot lipstick.