I use these for all my ball pythons. The larger ones can be used as a hide for balls around 1200 grams. The smaller ones are good for hatchlings up to 800 grams.

Large bowl/hide $3.50
Small bowl/hide $2.50
Quantity discounts available.
Shipping these are cheap because they stack inside of each other.

These are very economical, they save you from having to buy a hide box and water bowl.