In a nondescript warehouse behind the Strip on Harmon Avenue, magic happens. Not the abracadabra kind, but another more exciting sort. Ordinary everyday items are transformed into art. Real, tangible, immersive art. This warehouse is Joel Spencer and Nova May’s home away from home. It’s in this space that the partners in art (and life) create their impressive installations. Conjured from found, discarded, or unwanted materials, the couple conceives and builds fantastical experiences. We’re talking in the office of their commercial endeavor, ArtDepartment.Vegas, where clients can hire the pair to deliver anything from set design to public art, temporary or permanent. They’ve been involved nearly seven years, and have been…