Ouuu, and also a shed hide!
I have a humidifier in my ball python's room, but it doesn't always do the trick on those really dry days. I also have a mesh lid that I am nervous to put anything on, because of the heat lamp and it being a fire hazard.

All you need for a shed box is a container and some sphagnum moss! There are instructions on the moss that you get from pet stores on how to properly hydrate it. It is quite inexpensive, and you really needn't use much.
I use a clean margarine container, cut a hole in the lid big enough for my BP (if you have a larger BP you may need to improvise on the container) and sand down the rough edge. I then put the damp moss inside, and VOILA shed hide. He uses it when he's going into shed every time