From the elegant to the whimsical, from the stately to the eclectic, today's planters are more parts art than science... and, in some cases, such as the Garden Pendant Collection from Duchess Designs, they're both. These attractive, hanging planters feature a built-in water reservoir for self-watering. A great source for information on decorative containers — and for gardening advice in general — is GardenGuides. The link listed here offers "Eight Rules for Creative Container Gardening," and GardenGuides has many other practical ideas that can help you and your customer show off plants better. For your D-I-Y customers (or, if you're a D-I-Yer yourself), consider Powell's Books, which offers a selection of publications on the subject (enter "decorative containers" or "decorative planters" in the search box).