Sometimes, it can be just as fun to play as a villain. Introducing the Suicide Squad: Harley Quinn Teen Costume Kit! If you are fascinated about Harley Quinn, and want to dress as her for Halloween, be sure to add this costume kit to your wardrobe. As part of the kit, the costume includes a jacket as well as a shirt, both modeled after the ones from the movie. This is an officially licensed product. Pretending to be a superhero can be cool and fun. However, being a villain, especially on Halloween can be just as exciting!