The Harley Quinn Hacky Sack is by far the craziest hacky sack ever. Just look at this thing! Standard sized, the Harley Quinn Hacky Sack is both equal parts cute and insanity. Could you really ask for anything more in a hacky sack? Not really...at least you'll be able to get a sweet circle going on with Poison Ivy and the Joker...and maybe some of those Suicide Squad guys.