My husband and I turned an old entertainment center into a cage by replacing the back and adding a wooden shelf, using paint and rope lights, replacing handles, and using velcro and plexiglass. This pic is before we were able to get some coroplast to fit, so we just lined it with a plastic shower curtain until we find the right color coro. The plexi removes easily as it is held on by velcro strips. The pigs love it, and although it isn't as wide as their grid cage, it's longer, which they love!