And then the snake urinates/defecates and your hides are moosh.

Doesn't sound like a good idea to me.. Just buy some large plastic bowls, small kitty litter pans, or some of those black plastic zilla hides, and the snake will be fine.

We have a Dollar Tree here and they sell large candy bowls or whatever they are called for $1 apiece. Even my largest females can fit under these. During Halloween they had these large purple bowls with purple rhinestones and spiders on them. Just too cute. I cut out an arches opening with the soldering iron. They are easy to clean and don't take up much room in the tub.