Durable and inexpensive, plastic is a household hero, used for everything from decking to patio furniture. But did you know that plastic also works as an in-a-pinch mold for a stylish seating option? As this project tutorial demonstrates, you can transform bargain seating into a mold that can make as many luxe-looking concrete chaises as you'd like. Simply use duct tape to seal holes in the plastic chair, then fill the base of the upturned chair with Quikrete 5000. The lightweight construction of the plastic chair makes the unveiling nearly effortless, and the results are as stunning as they are long-lasting.