It’s good to show some support for our country and those who work to make is so great. As far as Mustangs, Flat Black American Flag Quarter Window Decals are a good way to do so. These go on you rear quarter window and fit all 2015 to 2020 Mustang coups. They are a subtle way to show your support for the United States of America. I will add more on how to install these as soon I get them for my Mustang and have installed them.