Jewelry, Eyewear and Watch Design Spongla jewellery by Zsófia Beliczay The idea of circular economy and resource efficiency is spreading globally among designers as well. She is focusing on objects made of unique secondary raw materials which have been seldom or never used by artists. Therefore she has chosen old foam mattresses to get big amount of sponge for her work. She has been inspired by the new idea of circular economy. How to use recycled sponge for making jewellery at the first sight not obviously made of waste? She has to prove that jewellery made from waste can rival with jewellery made of brand new materials.