Owner wanted a cracked look, at first wanted silver and blue metallics, but settled for standard because of price. I designed the inner protion of the crack and cut it all at once and then filled in around to the edges with scrap vinyl.
I taped the vinyl, then placed it over the shield while on a light box and drew with a pen the curves, then cut it with scissors and applied. Didn't turn out too bad for my first time, or at least I don't think it did.