OH MY GOSH when I get a cat I HAVE to do this! It would be SO funny for a guest to go to use the bathroom, but the cat is using it! But like its still so awesome that the cat just uses the toilet. I wonder if you could train it to flush, too.
Keeping the Litter Box Area Clean- rubber garage tiles from a home improvement store. The litter gets trapped in the holes, not tracked all over the house & works better than the mats sold in pet stores!