I have all kinds of hides from the expensive natural looking ones to the cheapest.

Jojo's Favorite.
I made Jojo a hide out of a Cinimon Toast Crunch box. I trimmed to box back to make it shorter and put some aspen bedding inside of it. He went in there and moved around the substrate to make him self a nice recessed area toward the back and he loves it in there. I think i might make him another one for the warm side.

Coconut's Favorite.
I put the core from a role of paper towels in his tank so he can pass back and forth from hide to hide without being left out in the open. But instead of just passing through he hides in there now. He is small enough not to get stuck so lucky for me.

EDIT: I forgot to add that Coconut also likes those small cereal boxes you know the kind that come in the variety pack.

I want to hear what kind of hides your snakes have.