Haha, that is a great idea. I wonder if you could coat the cardboard with some sort of plasticized stuff.... Herculiner Bed Liner rolls on and dries quick, and would give a cool waterproof textured surface.
ive been going to home depot and lowes and trying to find something similar. the only thing i can think of is going to office depot and finding those stackable things that teachers have on their desks for papers. but havent had any luck finding them.
1.1 het pied
1.1 butter
1.0 lemon pastel yellow belly
0.1 lemon pastel
and the addiction begins!
feeders(rats) - breeders(1.9) very happy male!
feeders(mice) - 2.5 breeders