For anyone unfamiliar with the Bengal area, dust is no foreigner. It collects on anything exposed air, (everything). But what can be a nuisance for some, can become a canvas for others. Kundan Chowdhury of the Chandan Art Academy in Bhadreswar, Hooly in West Bengal, India, draws clever and teachable art with his finger on the windows of dirty cars. He starts with very simple shapes and then shows how the shapes connect to make the whole as a sum of its parts.