Originally a sculpture that weighed in at nearly a thousand pounds, Keystone's deconstructed take on a Roman arch's elements included a concrete backrest, rubber wedge and ceramic rounded seat. Please Wait to be Seated brainstormed Dutch creators Os & Oos with the idea to turn those eye-catching shapes into a riotous soft seat. Clad in Kvadrat fabric from designer Raf Simons, it's an undeniable focal point in any setting and not incidentally a magnet for kids of all ages.