We have a 'custom' litterbox...we got a ferret nation cage and found that a plastic tupperware sweater box from the storage section of target fit perfectly. It was $5-7. My hubs put the plastic in very hot water for a bit and cut down one of the long sides with a sharp knife leaving just a bit of a lip to keep litter in. It was then sanded smooth. We use yesterday's news litter, which is pellets just like ones for the wood stove. Our ferts couldn't keep their little feets planted on the smooth plastic either. Then my grandmother went into a home and my mother gave us a ton of disposable adult incontinence pads. After some trial and error we discovered that one of these pads lining the box sprinkled with a scant 2 handfuls of litter worked great. It's even made cleaning the litter box easier since we just throw the whole thing out everyday. I did the calculations and we are saving a ton of money doing this too! You can get these pads (which ARE different/cheaper than wee-wee pads; same concept though) on amazon. Search adult incontinence pads, choose a size that could work for you. We purchased 200 for $35. Good luck! Sarah Lelu, Stoli, Oscar and Tessa [Posted in FML 7791]