[MUSIC] How to Make a Watercolor Wall Art. Mix together 1/2 cup water. 2 tbsp clear dish soap, 4 tbsp tempera paint. Mix different colors. Blow bubbles in the water. Add more soap if needed. Cover the surface in bubbles, varying the size of bubbles. Lay a piece of paper across the old dish. The bubbles pop and leave prints. Let dry and repeat with other colors, adding more paint to play with color intensity. Materials: Craft paper, tempera paint, dish soap, water, old bowl or dish, straw, cold-press board.