Contact paper? I agree I doubt that would hold up long term.
I wouldn't drop money on fancy anything for a poop board. I build mine on an angle with a chunk of rain gutter at the bottom. Then I can scrape the poo and it rolls down to the trough and I can haul it out.
Cheap plywood and glossy paint would create the best conditions for a low price. Add sand or pdz if you want for addition non stick property.
what a GREAT idea ,,