So far my little piggies have managed to tip over and/or break everything I've used as a water dish, including a tip-proof dog bowl, a cat litter pan, and a child's plastic sled. Any ideas for me? They have electric fencing so it can't hang from teh fence. A floater sounds good, but what kind of container can I put it in?? Also I'd like them to have a swimming pool but it seems like they'd chew through a plastic kiddie pool real fast. One of those big metal troughs would probably solve both problems but they sure are expensive!