Yeah, I use big, shallow, stainless steel dog bowls. They're really cheap, easy to clean, and the snakes can climb in and soak if they want to - or need to because, oh, a cat got into the room with the snakes and pulled the t-stat probe out and onto the floor. I love my cats, really. I'm glad the snakes had bowls big enough to climb into though. Also glad no one got burned.