how to illuminate with a microphone / spontaneous Oldenburg

Of course it sounds weird. Of course it is impossible. It has appeared in Barcelona recently. A new lamppost has been installed on some streets. It looks completely like a microphone...

Especially if there is just only one, like in Doctor Ignasi Barraquer Square.

So, in the end it is like an unintentional Oldenburg. Still I prefer bananas to microphones...