Spray or squirt paint to create colorful splotch and squiggle masterpieces.
Fill the pump bottle 3/4 of the way with water. Add just enough paint to color the water -- too much will clog the spray nozzle. Tighten the cap and shake well to mix. Adjust the nozzle so that it will shoot a thin, straight stream.
Hang the sheet or newsprint over the clothesline. Then stand a few feet from the sheet and begin painting. (If two or more kids plan to paint at the same time, be sure everyone stands on the same side to avoid mishaps and remind them to aim only at the canvas.)
After creating a masterpiece, try squirting on a signature. Or, hang up a new canvas for a challenging long-distance game of tic-tac-toe.