Exclusive Poison Ivy Adult Costume w Poison Leaf Mask, Sheer Mesh Glo AbracadabraNYC Pin by Olivia Kakande on Poison Ivy Halloween outfits, Poison ivy halloween costume, Halloween costume outfits DIY: Easy Poison Ivy Costume It seems fitting to finally share this Poison Ivy costume on St Patricks day! I realized I have very little green costumes. , This bodysuit is a commission Ive had in the works for years, but Poison Ivy Happy Halloween! This year I have chosen to sew a Halloween costume inspired by Poison Ivy. I opted for a velvet fabric with corset bodice and also handmade each leaf out of velvet