probably the most easiest and cheapest case to make. all you need is a plain transparent case, print out any pattern and cut it out to the shape of your case (don't forget the camera hole) simple and you can customize it to your liking!
This is a design by: Andre Rumann. It is a simple little product that involves a keychain holder (being the garage) and a keychain in the shape of little mini car. So when you return from work, simply park the car (and your key) in the garage :)