Make something similar to a play tent, but line the bottom with ceramic tile. ceramic satys real cold and provides a good portable way to keep your ferret cool. Tent will provide shade and ferrets will like enclosed area. If you need some more help, put the bottom of the ceramic on top of an ice bath, that will definitely keep the ceramic cold and your fuzzies cool, too! What is great, is it is portable. You can even design it so that they can drink from the water bath as well. Have all kinds of fun with it. Tubes submerged partially in ice baths are another great way to help your fuzzy stay cool and have fun at the same time. Paige [Posted in FML issue 2692]