Could be the rubber thingies that Eeyore was selling... on the old .org, I believe there was also a PDF kicking around telling you how to make your own.
I would do a search for either vinyl carbon fiber look - or there should be some actual carbon fiber adhesive backed sheets as well out there as well....
Send an email to Louie (i think thats his name...he owns the company) and let him know what you are looking for, the dimensions, and send him that picture and see what he can do for you, he has been great helping me with all my vinyl needs and that is what those appear to be are just "carbon fiber" vinyl.