You can also buy flexible magnetic sheets at your local office supply store. White on one side, black on the other, 8.5x11 or 11x17. They are soft, printable (although a little spray on polyurethane may be needed to weatherproof them). If you just wanted to cut out black shapes to stick on the orange car you could put 'em on, then peel 'em off and save 'em fer next year. I use these to put a flame paint job or Buckeyes logos on my PT Cruiser. Rotating customization, how cool!