You get those for $1? I checked four different dollar stores in my area and didn't find anything like that. I did that last month, maybe I should make another round because I'm sure things change often.
I'm going to order a whole bunch of the Van Ness plastic crock dishes to cut doorways in and use as hides. Maybe I'll try that as water dishes for awhile, but they seem like they're too tall versus their weight, and therefore easy to tip as some people have experienced. They are pretty cheap, maybe I can just cut the height down but they're still tapered outwards. That might work though...
I would really like to find some shallow ceramic straight sided dishes that are cheap though.