iPhone 6 car holder

If you want to use the mobile in your car for music, navigation or whatever there is no way around: a holder is required. Such a holder is based on a suction cup on the wind shield (not allowed in Switzerland), a clamp on the ventilation or similar.

They have all in common that they are ugly and to attach the mobile is cumbersome or you need to glue something on the mobile (e.g. a magnet) which disturbs you when you use the phone not in the car.

If I had an idea how to solve this I would