Thick Rubberized License Plate Holder??

In my quest to make my new E slightly more immune to parallel parking bumper mishaps, I've been searching for a front license holder that would ideally be very thick and rubberized. With this holder, someone backing up into the space in front of my car would first hit my front rubberized license plate holder which would hopefully absorb a little bit of the impact and perhaps prevent scratching. Have been trolling the web looking for such a plate which I assumed would be readily available as I can't be the first person to have thought of this. Oddly, I can't find one. If anyone knows a link to such a plate or an alternative I'm overlooking (already have a Bumper Bully for the rear bumper), please post here. Many thanks.