Terracotta pots make the best hides !!!
They come in all shapes and sizes, they hold water (for humidity) are easy to clean, look naturalSome people only use the hole on top as an entrance, I used to CAREFULLY knock a piece off of the edge, and then use a dremel or sand paper to smooth out the edges. On the top I put fake plants.
They were my (and my snakes) favorite hides when I had display cages !