Rain barrels are not only an excellent way to collect runoff rainwater for watering gardens and washing cars. They also make excellent canvasses! Join the Vermont Institute of Natural Science this Saturday, 9 a.m.-4 p.m., to learn about rain barrels and water conservation, and try your hand at painting a barrel. The Art on A Rain Barrel Festival will feature 30 pre-selected teams and local artists painting designs on rain barrels to be placed at various locations throughout Vermont and New Hampshire. Enjoy the spring weather and tour the live raptor exhibits while you're here. For more information, visit the VINS web site at www.vinsweb.org.