Wow! What a nice father. My kitties are jealous...they want a fountain and those tunnels...shhh...don't tell them they're getting the fountain for Christmas! The cheapest I've been able to find those tunnels is about $8 a piece on ebay...I'd like to buy a few, but with the cost and shipping...it would get too pricey. I'm headed to Home Depot tonight to see if I can find some large cardboard rolls/tunnels that I can cover in fabric and fleece for the kitties.