There are several good substitutes out there for dryer tubes. If you must have a clear tube to watch your fuzzies play in you can find them in woodworking and industrial stores. Look for "dust collection hose". They have clear ones that are very thick and sturdy that a ferret would have a hard time chewing thru. They last a forever but these are VERY pricey! The cheapest on line is from "The woodworker's Shop" theirs aren't the nice thick ones but still double the thickness of a dryer tube. If you don't have to have clear, Lowes and Home Depot have plastic black irrigation tubing that is fairly cheap but kind of ugly. If you go to the gutter dept. in these stores they also have flexible, bendy tubes you put on the end of your downspouts to redirect the water where you want it. They are only 8 feet long when stretched out but they cone in green, tan and white. I've spliced a few together and made a long tunnel with them and they work great. You can bend them into different shapes for extra fun. Nancy [Posted in FML issue 5185]