I have seen bearded dragon keepers make caves and basking spots out of styrofoam and grout mix, are they suitable for ball pythons? Will they be wipeable or will their poop wreck them? I had no theme or direction but maybe more of a natural habitat, some fake low grasses, a tree, make a termite mound hide out of something.
I did get a divider for one to potentially keep both balls in one, although that would leave me with an empty cage.