Thanks to MediaCreativity:

The idea and execution are simple, cost-effective and cause-effective. Is it daytime in a tropical climate? Then wear sunblock.
Nivea Sun advertised its product using mirrored billboards that projected copy onto walls, storefronts, car doors, sidewalks and buses, using the sun’s rays as its ink.

From MediaLife:
“It’s all over the news, all the beaches along the Gulf Coast that have been ruined by the BP oil spill.

Yet beaches further down the coast are still pristine, and that’s created a public relations challenge for businesses in those areas. How do you tell the public, specifically vacationers, that your beaches have not been affected?

That was the issue facing the Panama City Beach Convention and Visitor’s Bureau, which was worried that potential tourists would forego a visit to its beaches because of their proximity to the spill.
The bureau hit on an innovative solution: Each morning it uploads pictures of the oil-free Panama City beaches to digital billboards across the Southeast, where most of its tourists hail from.

“Everybody here very much wants to make sure we’re doing everything we can to get the message out that there is no oil along any of the beaches in northwest Florida,” says Dan Rowe, president and CEO of the Panama City Beach Convention and Visitor’s Bureau. “There’s no better way to reassure the public than to show a photo that is live as you can be.”

Thanks to YMCA (and TWBA Vancouver)

Original version.
Version accepted by CBS (for the SuperBowl).

Actually, the second tagline is better …
… every once in awhile censorship makes things better, in ADV.

From MediaLife:

“Imagine taking an image of the president of the United States and throwing it up on a billboard, in Times Square yet, to hawk overcoats, of all things.

As one would expect, the White House was not amused and basically ordered the offending coat maker, Weatherproof, to take down the billboard. The coat maker, as one would expect, protested, citing the First Amendment. The media pounced on the story, again as one would expect, treating the showdown with far more seriousness than it deserved. Legal experts expounded at length.

Finally, Weatherproof blinked, agreeing to take down the ad, which by then had brought it great heaps of media exposure, all for free of course. That all happened two weeks ago.

But there’s more to the story.

Just as the Obama billboard was to come down, one playing on it went up right next to it.

Put up by AMC, the ad shows a character in a very similar setting–we see, as in the Obama ad, the Great Wall of China behind him–in an identical pose, looking quite serious, hands tucked in his coat pockets.

The type in the ad is of the same font and size. In place of “Weatherproof” on the original ad are the words “You got No Proof,” the letters all run together, and below that, “Getting Away With It Since 2008.”

In place of the tagline “A Leader in Style,” the AMC ad has “A Dealer in Style.”
The ad is for the show “Breaking Bad,” about a teacher turned drug dealer, and features the show’s star, Bryan Cranston, with a gas mask perched on his head of the sort used by drug makers. The reference to 2008 refers to the year the show debuted.”