This project from Berlin based studio Ambivalenz is aesthetically pleasing and makes a lot of sense too. The collection of collapsible pieces – chair, stool and coat rack – can be stored completely flat. But here is the kicker – one side of each piece features artwork, so it can be displayed on the wall instead of occupying your closet. What a neat idea! I also quite like the string folding/unfolding mechanism that brings the stool and the coatrack in motion. The stool can be turned upside down and serve as a magazine rack. Plain white versions of each item are also available. The Ambivalenz collection is currently displayed at the Designers Fair 2012 in Cologne.