I saw one for sale on craigslist the other day and thought it was the COOLEST idea. They were asking $125 for it, which is a little rich for my blood, but I loved the idea and now I'm going to make one. It was just a chest of drawers with the top three drawers removed and that area covered in hardware cloth with a little door. It had a brood lamp at the very top, but I think I'd install a bulb in a wire cage, with a dimmer switch that can be adjusted from the outside. The two bottom drawers were left in for equipment & feed storage. How cool is that? It would need adjustments for ducks--I'm thinking I would install a drain, and put a little bucket under it (in the drawer below) so when they splash all their water out into the bottom, it wouldn't flood them out. Also, I'd have to either line it with linoleum & caulk the edges, or spray it with that stuff that turns into a plastic coating. It would also have to have a lip on the front to prevent poop spraying everywhere and water splashing out on the floor. But I'm seriously digging it. Can't wait to get started.