My husband and I created one using those flat plastic sleds you can buy at toy stores. In a particular doorway, we needed to use two so we used double-sided carpet tape to hook them together. You then cut them down to fit around the door frame. This is a very cheap way to make your own. The sleds usually run around $2-3. Melanee Ellis "The Ferret Lady" www.ferretlady.org [Posted in FML issue 4244]