Neil Gershenfeld and his colleagues have created Fab Labs around the world. He shows how personal fabrication is possible today and how it's meeting local needs. Children in inner-city Boston have used Fab Lab machines to make saleable jewellery; Indian villagers have used them to develop devices for monitoring food safety and agricultural engine efficiency. And MIT students have made everything from a dress that protects your personal space to an alarm clock you wrestle into silence - PICNIC