So i've been looking around trying to find a car mount that i like, and it seems like every one is unnecessarily huge and completely ridiculous looking. I just want an extremely small, simple, yet sturdy mount. I looked at the tetrax, which would be great, but it turned out to be like 40 bucks, which seems crazy for how small it is. Unless someone finds it cheaper? But anyways, to the point of my post, i can just make one for next to nothing by getting a rear snap on case and a couple rare earth magnets, then attaching one to the rear or the case. What i want to know, is there going to be a problem with having such a strong magnet so close to the back of my phone? I got the Dinc. i donno if it could mess up the screen or something.