I'm developing a very small PCB that I'll put inside a small case that will be attached to glass, let's say for example in a car. Once you attach this to the glass, it should stay there for a long period, but should also have the ability to be detached and attached again without too much effort.
At first I considered using a sucker also known as a suction cup but this is maybe a too bulky solution, and I need something more discreet. Also the distance between the glass and the case should be minimal, and using the suction cup this distance is considerable. So do you know something that could do the job for this application?