(link) RAIN BARREL PAINTING INSPIRATION ~ Painted rain barrel ~ Use spray paint formulated for plastic like Krylon's Fusion for Plastic or Rust-oleum's Plastic Primer as a base and outdoor acrylic paints for the decorative painting.
Love my rain barrels may get more! Really great idea for saving water! Rain water is better to water flower beds with, so this is an awesome idea. I saw this on a show not too long ago. You can hook up your hose and water your garden too.