Heart minimurals are a good way for students to experiment with watercolor washes. Give each student a 12 by 18 inch sheet of white construction paper. Dampen the paper and dab on dots or stripes of paint, allowing colors to run together. When dry, draw five to eight heart silhouettes on the paper with a black felt pen. Cut the hearts out and leave a small border around the black outlines. Mount them in a row on a strip of heavy tagboard or matboard. Tie the design together with a border.
Carol J. Flatt
Source: This activity is from Month-by-Month Arts & Crafts