The Jokers Best Girl Why be good when it is so much fun to be bad. Bring out your bad self this Halloween with this Harley Quinn Womens Costume. This costume features a skin-tight dress, arm cuffs and a matching headband. Thigh highs and eye mask complete the look. Great couple costume when paired with the Joker. Item Includes: Dress. Headband. Gloves. Eye Mask. Thigh Highs.