Aluminum oxidizes instantly on contact with the air, covering the surface of the object with a clear & very strong coating of AL-oxide. There really isn't a need to coat it with anything unless its in a extreme environment like the ocean.
Assuming a true dream prop... If it hasn't already been said, I fully working(magical) Golden Movie Ticket from the Last Action Hero.....
After that, I get the rest of the cool toys myself :D
See that's, how the cyclons beat them so much, they used windows... j/k
It would seem that what your looking for is an older MS media keyboard(maybe the 600 series), upon first look. However the only company I've known to use "chrome" media buttons is HP. Also that could just be a custom...