Diana, I use for my k-8 th graders, low glass jars that salsa comes in. More
than one kid can use it and I teach them to only fill them 1/2 way. This way
they can wipe the brush on the inside. I also show them what happens when they
wipe on the edge. They don't like getting water flicked in their face (of
course I do it gently and just a little). These jars don't tip over either.
Keep the ideas coming ! Gail