What was behind the creative idea to reuse the plastic bottles that littered the Amazon forest? In 2012, Spanish industrial designer Alvaro Catalán de Ocón worked with artisans from Cauca, who had been displaced by guerilla war to Bogotá in Colombia, to turn plastic bottles (polyethylene terephthalate - PET) into colorful lamps, each one with a unique design. These lamps are created by adopting the cloth-weaving technique that existed before the Inca civilization. The local palm leaves are used as raw materials and they are dyed with natural pigments. Besides solving the environmental problems, the Pet Lamp project also combined local resources with cultural knowledge and traditional legacy in a vibrantly colorful fashion.