A print ad that uses solar power to charge cell phones? At long last, mankind's prayers have been answered! Giovanni + Draftfcb in São Paulo, Brazil, developed the ad, which includes a wafer-think solar panel and phone plug, to promote the Nivea Sun line of skincare products. It ran in Brazilian magazine Veja Rio, and there's a sun-soaked beach video that shows the device in action. Of course, the ad is mainly a gimmick to generate publicity through media coverage, which we're pleased to provide, though the work also suggests that adding novel functionality to traditional campaigns could be a smart way to stir things up. What will they think of next—a billboard that generates drinking water out of thin air?