Born 50 years ago (the same year as I.D.), Sori Yanagis Elephant Stool was the first of its kind made entirely of plastic. This rerelease from Vitra substitutes injection-molded polypropylene for the original fiberglass-reinforced polyester. So while its still lightweight (4.2 lbs.), compact (19 in. around), and affordable ($95), the piece is now also Earth-friendly. www.vitra.com