Pics: Kim Kardashian’s Batman Villain Poison Ivy Halloween Costume By Robert Littal - October 30, 2011 7 927 Share on Facebook Tweet on Twitter tweet It is all about creativity when it comes to Halloween. Nicki Minaj? Casey Anthony? Tim Tebow? Come on you can do better than this, so I give Kimmy some credit for going deep in the Batman Rogue gallery for the Poison Ivy costume.