I know this is a longshot request. Does anyone have pet pee pads for animal crates they don't need?

My senior cat has been pooping and peeing in the crate on the way to the vet for annual checkups in past 2 years. But he has a health issue now that requires followup appts this month. I've run out of old towels. I'd even take old towels but the pads would do better keeping the wetness away.