Mustang Horse decals for cars, trucks, windows, horse trailers, & more in your choice of sizes & colors personalized. Apply custom vinyl Mustang decals indoors or outdoors on most smooth surfaces. Made with durable sign vinyl that lasts for years without fading. You won't find better quality horse decals. Choose from Mustang Horse Head, Mustang Horse Silhouette, Mustang Horseshoe, and more.