This chapter looks at the influence of Cold War diplomacy on German design. Within the bipolarity of the Cold War, the political significance of aesthetics in everyday objects was well established. Taking the focus of the superpowers to interrogate the specifically German cultural politics behind the aestheticization of separate identities—proletarian in the East and cosmopolitan in the West—highlights German interests in the global Cold War. It is in the operationalization of industrial design for diplomatic purposes, in which economic culture and foreign policy directly connect. In order to show how material culture emerged as a recognizable language in the intra-German relationship and what functions it served, this chapter integrates the material with the diplomatic ambitions of the two German states. In this way, East and West German cultural-political strategies that sought to negotiate a German-German modus vivendi through the medium of domestic culture can be connected to the complex history of Cold War German diplomacy within the framework of international industrial design exhibitions, international design organizations, and direct German-German cultural exchanges. At the center stands the question of how both Germanys turned a competitive situation, the aestheticization of their respective political orders, into a diplomatic tool for rapprochement.