Rubies Costume Co. IncTime to rev up that Harley! She's our favorite little devious sweetheart and she's always out to wreak some havoc. If she doesn't win your heart she's sure to steal it by ripping it out of your chest ... more(Mr. J's not the only one who likes jokes) . We've enjoyed watching the continuous change in costumes from one sexy style to the next but there's just no arguing that the classic look of her original one-piece jester inspired jumpsuit is the go-to style! Pull at some heart strings (but not literally, that's a little too into character) with this classic Adult Harley Quinn Costume. It has those big, bold bright black and red alternating colors that'll knock everyone in the room flat. If that doesn't do it then just pull out your giant hammer and you'll be set to go. This is a perfect half to a couples costume; all you need is your Mr. J (and we have plenty to choose from) or a Poison Ivy (plenty of those too) . Maybe even get a group together for a great Suicide Squad look. Just remember that she's a certified doctor of psychology and can make plenty of her own diabolical mischief all by herself. And always-always-be sure to introduce yourself with a big ""Harley Quinn, Pleased to meetcha!""