Today I received this in the mail. It's called a BumpShox. Essentially it's designed to protect your bumper when parallel parking, parking, or maybe another mishap maneuver you might make while driving at low speeds. It seems like a pretty good idea. Most bumper guards or protection devices I have seen tend to be rather large and obtrusive. They tend to detract from the look of the car as well. The BumpShox is small, not to noticeable, and feels fairly sturdy. I will post a detailed review once I have a chance to use it and test it out.
UPDATE: Please read and checkout my review of the Bumpshox!