Quote Originally Posted by bcr229 View Post
basically anything made of thin plastic where you can cut an access hole with a pair of scissors.
I don't recommend an access "hole" unless it's at least twice as wide as the widest part of the snake.

More of a notch, that is NOT enclosed on all sides. (an upside down U is best, not an O) Then the hole is not finite in size, and they cannot get stuck
if they turn back on themselves.