Your four-legged friends will be happy more than ever with this Heads or Tails collection by Japanese design studio Nendo. It consists of a range of transformable accessories for dogs: a dog bed, dishes and toys, all of which can be used in two ways. The pieces are constructed of triangular panels connected in polygon mesh to be stable in different shapes. The artificial leather bed pops up to become a little hut or can simply be used as a cushion. Ceramic dishes have a larger bowl for water on one side and present a smaller saucer for food when flipped over. A lightweight silicone toy bone made from a skeleton of triangles can be reshaped into a ball by folding the two ends back on themselves. These things are stylish and flexible – what can be better for a modern dog?