This surprising Bubble Stool is by Studio Ololoo, a Ningbo, China-based design firm. At first glance it appears to be aluminum, and it might take you a second to spot the unusual seat: The stool is in fact made of painted wood. The captured, inflated seat is made from thermoplastic polyurethane, a material that splits the difference between rubber and plastic. "This stool is inspired by children game of blowing bubbles. The inflated TPU air bag is fixed in the seat, and is squeezed by the irregular wooden ring to form an organic bubble-shaped seat cushion. All the screws of the stool are cleverly hidden in the internal structure, and users can't help but wonder how the airbag is installed." "It is comfortable and supportive, reminding users of the feeling of sitting on their parents' laps in childhood." At press time the Bubble Stool had been prototyped, but no production plans had been announced.