To promote their exhibition stand at the Franfurt Book Fair, Eichborn the publisher with the fly prepared 200 flies with an ultra light banner. The banner was attached with natural wax. After a short time the banner dropped off by itself. And the flies were not harmed.
When they say flies, they actually mean flies too! It’s an old one but when you actually realise what they’ve done, it’s great and very different. It’s funny to watch the flies fly around people. I wonder how they got them on the flies.