I've used (& modified) all kinds of clean cardboard boxes (also those molded cardboard packing things that have nooks & crannies everywhere to pack electronics &
such) as hides to entertain my snakes...so you'll get no criticism from me. In fact I used shoe-box lids to make mazes when I first got my hatchling Trans Pecos rat
snakes- & they appeared to love the multiple doorways & super-secure feeling deep inside the tunnels created. When the mazes got dirty I tossed them & switched
them to more conventional hides, but when they first arrived they were right out of their eggs, & shipped late fall (when they hatched) right before it would have
been too late for air travel from New England's brutal cold, & they clearly felt so secure with their mazes, they fed easily for me & ever since- I take that as "proof".
Rudeness is the weak man's imitation of strength. Eric Hoffer(1902 - 1983)