I like heavy water bowls so they don't spill them as easily.
Currently they have some nice sized ceramic ones at the dollar store for - you guessed it - $1.00.
I do like the water bowls to big enough for the snake to completely soak if the snake chooses to do so. The dollar store bowls are not big enough for a full grown cal king to completely soak, I buy more expensive water bowls for the big ones.
If you put the cost of a water bowl over 24 months - even the expensive ones are cheap. But the expensive nice ones are even cheaper at shows.
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3.6 L. getula californiae - 16 eggs (Cal. King)
1.1 L. getula nigrita (MBK)
1.0 Pantherophis guttatus guttatus (Corn)
0.1 Pituophis catenifer catenifer (Pacific gopher)
3.3 Elgaria multicarinata multicarinata - 14 eggs (Cal. Alligator Lizard)