This is a SnakeHide I came up with, I got into keeping snakes as pets, and I didn't want to spend $20+ dollars for hides every time I set up a new snake enclosure.

The hide in the picture was printed at 70% of normal, the STL I have in the files is about 7in x 7in x 5in so this will use most of your build surface to print this on an Ender3