This is really simple, but with my younger girls I often find that simple is best.
Tempera paint–white, red, and blue
Red or blue construction paper
1. Hand out paint, paper, and forks.
2. Let the kids draw by dipping the fork in paint and using it on paper. I had hoped that the forks would help make firework and stripe patterns, but it turns out that they are 1 and 2 and mommy’s complex art ideas can be a bit silly to them.