Like everyone else here, i was scared to death of drilling into my new baby just because 30/50 states require front mounted lic plates by law. So I did some research and found this mustang enthusiasts answers.
Craig's Custom Mustang Brackets - Bracket Information
Just installed it, and my baby is beautiful, mark free, hole free, and easy to take off for show (being a photographer I like to promote my ride often).
Most of you probably already heard of this guy, but for those who haven't, there ya go!