Handpainted Garden Watering Can One plain aluminum or tin watering can Plastic Enameling Paint - your choice of colors Hand paint the can with a design of your choice. Get busy. Remember you need not be an artist! Most of the charm of this project is it's Country Look. Let Dry. Voila! This is a nice gift for the gardener on your gift. Fill with long stemmed mums and tie a ribbon to the handle. Or, use as a decorative planter on your garden patio. Fill 1/4 of the can with sand or gravel to weight down, add potting soil and plant of your choice.