I lived through the eighties and I approve of Trixi Studios' "Take On Me" iOS (proof-of-concept only) app which turns your surroundings into a pencil-sketched, a-ha-style music video using augmented reality. The Chicago-based team created it with Apple's ARKit, which is a suite of developer tools launched in June that adds AR to apps.
Here's a-Ha's original music video, in case you're feeling as nostalgic as I am:
Thanks, Robert Scoble!