The new high-quality recycled material used to make Happy Bin RE stems from Germany's 'Yellow Bag' (Gelber Sack) collection of household waste, from which used plastic packaging is sorted, cleaned, shredded and upcycled back into injection-mouldable polypropylene. Due to its composition, the recycled material is interspersed with tiny specks of pigment. These subtle colour variations perfectly complement the slightly irregular shape of the wastepaper bin: Swiss designer Michel Charlot was inspired by a Hans Arp sculpture when creating Happy Bin RE, which brings an unusual organic design language to the typically austere office.