There are a lot of things that stain your teeth but coffee is by far the biggest culprit. JWT/NY and Kraft decided to focus on those people that consume coffee throughout the day and launch this cleaver campaign – Don’t coffee-block your Smile! The idea behind it is: One’s love for java should not keep them from having a great smile and chewing gum can help you undo the damage you do. It isn’t a glorious magazine press ad, but has all qualities a good ads should have: clear, simple and to the point. Moreover, since it is on the coffee cup itself, which means you have a chance to walk around drinking with a seriously unusual/cool cup. Love this campaign, it actually makes me smile. What do you think? source.