What a cool print ad! A print ad that promotes green energy by being solar-powered itself. In the magazine, you see a black and white sketch. But when you hold it up to the sunlight, it changes into full colour! And then text appears to complete the thought. It was created by BBR Saatchi & Saatchi in Tel Aviv for Israeli energy company Shikun & Binui Solaria. I have a feeling this work may end up winning some kind of advertising awards.
Here's the magazine Print ad, and below is a video demonstration.