Irrepressible Need of Joy presents mega-toys born from interactions between Polish museum curators, designers and artists. These installations are linked to decorative patterns and craftwork collections from the Ethnograpic Museum of Cracow. They pay hommage to ancient pictorial techniques, cuttings, wicker-work and wood sculpture. The exhibition of these mega-toys in the public domaine is the moment for an interactive and experimental exchange with Polish ethno-design.