Three teenage students from a London fashion college launched a new teenage fashion craze, when they held a beat the clock marathon of psychedelic painting in the window of a Knightsbridge shop. The "op" and "Pop" art designs were being painted on Dr Scholls sandals. The students, left to right, Sally Mathias, Serena French, and Angela Collins, all wearing psychedelic dresses they have made themselves, painting the new psychedelic sandals in London.