Interactive goes analog with the launch of the new Abraxas beer ad in Lima magazine. Produced for SAB Miller by Wunderman Phantasia PERU, the ad is deceptively simple. Turn the flashlight on, on your phone, or just use a strong light source to reveal a secret message by suing the light through the back of the ad. I love this because it encourages you to use your smartphone, but requires no app, QR code, or any other digital device. Nice, simple, effective.