Dollar Tree is one of my favorite places to explore!
You just never know what you'll find!!!
A week or so ago I found a paper marbling kit.
I was curious, but not so sure what to expect.
You fill a container with regular tap water, and then squeeze & swirl the color onto the surface (note: you have to clip the ends...or risk causing the tube to blow!) Don't stir/swirl too much or it will muddy the color. Once it looks as you wish...lay a piece of paper on top of the water. It doesn't need to rest there for long. Place the paper on a flat surface to dry.
It turned out surprisingly well! It could be a fun art club project, at home with your kids, as a reward for a small group....but the shaving cream with paint is a better bang for your buck when working with a larger number of students (though a whole lot messier than this Dollar Tree kit).