Biodiversity has been the subject of several of the duo’s works, starting with Mischer’s graduation project at Eindhoven, which took nature’s own limited editions — endangered species — as the starting point for a series of limited-edition design objects. Her Limited Fungi shelves reproduced in tin the rare Austrian kuehneromyces lignicola mushroom, one for every specimen known to be in existence. The mushrooms were divided among 12 shelves produced by Droog Design.