That's a great idea for the hatchlings!
Although I was thinking of water dishes for the adult animals. (Sorry. I should've been more specific.) I've read that some people use sections of large PVC piping cut to height and insert disposable deli cups into the sections. It seems like a wonderful idea, but I'm not really sure about the specific sizes involved (PVC and deli cups).
I keep reading about 4" PVC piping/couplers/joiners/caps with 16oz deli cups inside. However, the 16oz deli cups are 4.5" in diameter. How does the math work?
Chris