I tried an experiment with watercolor, spray adhesive, and a stencil.
I know, always with the rainbows. I've said before that rainbow is my favorite color, and it's partly because I can't pick one or two colors.
In this case, indecision makes pretty art.
I think I went a little too heavy on the paint here. I'll have to try going lighter on the paint thickness...and the adhesive. Whew.