We implemented the concept by going to the place our arguments would be immediately obvious....the planes of the largest competitors, easyJet and Ryanair. On board we started the first airborne guerrilla campaign: The Germanwings Planemob. We checked in four-man teams onto easyJet and Ryanair flights and in their hand luggage they had boards with speech bubbles on them. They followed a pre-rehearsed order and entertained the other passengers with the dialogue on the boards, commenting on the drawbacks of the competitors.

Hundreds of enthusiastic easyJet and Ryanair passengers flying around (no leakages).And a lot of online chatter.