Six Degrees of Smoking is a cool project by British artist James R Ford. Anyone who smokes or know someone who smokes can take part in this global collaboration. The project aims to find out what happpens to a lighter when it is being passed around. To participate, email him with your address. He will then mail you a lighter with a special note pasted on it. Photograph yourself lighting a cigarette with the lighter and then pass it to a friend or a stranger.
(Thanks Sir Thomas)