Would probably make your brass smell like cat pee, and you'd have to sift out turds.
My experience has been that all kinds of people use all kinds of different things and some of them buy it at pet stores... but for me, using purpose-built corn cob media that I picked up at a gun show has lasted y-e-a-r-s, and if I put in three squares of cut-up paper towel and a I squirt some Nu Finish car polish in there with it, the media lasts until I scatter it in to the carpet and lose it.
Years! Still cleans as well as it did when I bought it.
Attention Brass rats and other reloaders: I really need .327 Federal Magnum brass, no lot size too small. Tell me what caliber you need and I'll see what I have to swap. PM me and we'll discuss.