I clean the cage and wash/scrub the bowls once per week exactly almost. So I could start changing it every few days but I still see this as a problem.
I think I will probably just purchase some unglazed ones if I can find them, and glaze them myself. Probably easy to find at those do-it-yourself ceramic painting and firing places.
I would just use plastic but we all know how impossible that gets with ball pythons or big corns. lol knock them over every night.