toilet paper or paper towel tubes
variety of different sized marbles
tempera paint poured into shallow containers
Pick up a marble with the tongs and dip it into the paint. Drop the marble on the paper. Move the marble around with the paper towel tube, holding the tube just above the paper so as not to rub the tube on the paper. When finished with one color, pick up the marble with the tongs. Get another marble and pick it up with the tongs and dip it into a different colored paint. Drop it onto the paper and use a clean tube to move it around. Use several different sized marbles and several colors of paint. The finished product will be unique every time.