If you have a dollar store or a walmart near, you can pick up a cheap big mixing bowl, flip it upside down and cut a hole in one side, large enough for him to crawl through. I'd suggest sanding the edge to take off rough edges. Ran me about $2 for the bowl.
I've also heard of people using small cat liter boxes, i used an empty margarine container for one of my other ball pythons.
Edited to add; I'll get a pic of my 'hide' when I get home to show you what I did.
Sent from my iPhone using Tapatalk