This has always been one of my dream costumes and I am VERY happy with how it came out. Multiple times while making it I considered scraping the whole idea, but perseverance is key!
I made my own pattern for the bodysuit and boned it, to stop things from popping out. The bodysuit it made and lined with spandex.
I ended up winning a craftsmanship award at Fan Expo 08' for Poison Ivy and Harley Quinn; I made both of them for me and my friend and was trilled with the unexpected win.
Big thanks to Kevin/Stillvisions for doing photos with me[link]