I made it at TechShop! Check them out www.techshop.ws.
Using a template and a metal shear, cut sheet metal into strips.
Using your template cut your strip to size.
Using a template and center punch, mark all points to be punched.
Punch out marking points with a turret punch.
Sand down corners using a disk sander.
Bend your bracket using a box and pan brake.
To prep for painting, sand blast metal.
Powder coat and bake bracket.
Marvel at your newly made license plate bracket :)