Mom has a set of watercolor paints that are in powdered form. We tried sprinkling them on paper after a water wash. The sprinkles dissolve in the water and the paint drifts. Looks really cool when it’s doing its thing, but it keeps going, and the water pools in the middle of the paper. You can see the potential here, though.
I wanted to see what the virus blanket looked like with each group of rows in different colors. The pattern is from http://www.jonnamartinez.com/2015/11/blanket-pattern-and-worked-up-by-jonna.html