Where do you get your ideas?

The shows, the comics… leftover parts. If the Joker shows up in a scene wearing a swimsuit, and I think it’s funny or it’ll look good on the shelf, chances are I’ll make it. Then I think about associations. I can’t remember Harley in a swimsuit in an episode, but a swimsuit Joker needs a swimsuit Harley. So really, there’s no specific place. I simply try to keep an open mind.