You know about AIR Sata 15842 PISTON
This item is very useful because it allows us to quickly swap the Garmin Nuvi GPS from one car to the other. It is especially good that it can be placed on the dash where it can be seen without blocking either the instruments or view of traffic. Also, it can be easily moved to the right side for help with navigation by a passenger. It clings well. A window mount is not as practical because it places a GPS too far away, and also prevents use of a sun screen when the vehicle is parked.
Sata 15842 AIR PISTON