|  |  | McDonalds lettuce growing billboard is actually kind of cool azsustainability.com — This is definitely a unique and creative way to sell some salads. The advertising folks over at McDonaldâ€™s came up with this billboard near Chicago that actually grows itâ€™s message in lettuce and judging from this picture were quite successful.More... (Arts & Culture) Comments Email Added 2008-06-13 11:50:13 maddvibe