Play Glass or Travertine-topped table made from mycelium. The pieces are crafted from natural materials as well as upcycled textiles. Hettler.Tüllmann have been digging deep into the world of organic matter, experimenting with mycelium, the root structure of mushrooms. While mycelium has been successfully used for building insulation, Hettler.Tüllmann’s designs reflect on the fragility and beauty of this mysterious material, elevating mycelium so it is recognized as a high-end material where they believe sustainable materials also belong.