Developed by educators at UC Berkeley's Lawrence Hall of Science, Sunprints encourage an interest in the photographic process using only the sun and water. Place a leaf, flower, or other object on the special photosensitive paper and set it in the sun briefly. Then rinse the paper in water and watch as a beautiful long-lasting image appears. Use your creativity and see what develops. Both the kit and refill have 12 sheets, the kit also includes an acrylic overlay.