i dont know of an item like that, but i am with u on that one! I scraped my front chin in the exact same spot and pissed me off so bad!!!
Can't see the scrape unless u get on your back on the ground and look up at the bottom of the front bumper, but still...i know...:-\
I would be a much satisfied customer if someone could produce such a part that would protect that part of the bumper.