What a great idea. If only I could do something along those lines so that when Andy "goes" I don't have a huge mound of litter next to the box. He is quite the 'covering' kitty. (Yesterday he jumped right into the box next to him where Trevor was still 'going' and started covering Trevor's contribution to the box). I guess he is a little obsessively clean! It would involve moving my litter boxes up against a wall and I don't know how Trevor and Andy would adjust to moving their potties. Hmmm...... Anyway, congrats on your creativity!