Viperkeeper on Youtube doesn't use water bowls for most of his snakes. He uses one of these: to offer water to his snakes. He offers it to their heads and sometimes they drink, and sometimes he sprays their backs and they drink off of that. Worth a try.
I just looked that guy up, he's nuts lol
Yea a dollar tree just opened up in the town next to mine, i'll have to check it out!