What you will need for this craft is high quality watercolor paint. I recommend winsor newton. In the fall leaves craft tutorial, I mentioned that this craft will not work with cheap paints. That means that you cannot use those little dry cakes of watercolor; you must use a professional grade paint. You also must use 140lb cold pressed paper. This paper has more grit or teeth and creates the nice effects that you see here. As far as paint colors, choose 1 or 2 reds and one blue. I use alizarin crimson in the video but cadmium red is fine, and french ultramarine is a lovely blue. In the heart pictured above, I use a tad of Q gold.
This is a wet in wet technique. Your paint should be prepared ahead of time and mixed with water until you achieve the texture of heavy cream.You will tear your watercolor paper into 4″ X 6″ pieces (or smaller) and draw a heart with a pencil. Then use plain water to wet the paper only inside the heart. It should be wet but there should be not puddles (you can suck up extra water with the edge of a paper towel. Then simply drop in your colors and tilt the paper to mix. To dry the hearts, you can use a hair dryer, but beware that little puddles of paint may blow across the page. This is a great project for the art classroom.