Deal Genius offers two Suncast 12" Self-Watering Hanging Planters in Tan or Green for $16 with free shipping. That's $18 under the best price we could find for this quantity of similar planters sold elsewhere. Each features a hidden water reservoir and a 21" drop.

Update: As a reader notes, Home Depot offers the similar Southern Patio 13" Round Resin Self-Watering Hanging Basket for $6.97 with in-store pickup.