At Masadrewna, the starting point for the designed objects is the geometry of waste fragments that determines the final shape of the product. An important quality of those objects is also their energy efficiency conserved both in their production and later exploitation. Non-waste material added to individual products does not exceed 20-30% of the manufactured object’s mass. That idea is maintained in the case of every single object leaving the Masadrewna workshop and is the guiding principle of the design and manufacturing process.