This trick will remove rust from chrome.
I just found this out on another site. I wanted a cheap way to remove a little rust spot from my truck's bumper.
You get a piece of aluminum foil and dip it into some Coca Cola. Rub the shiny side on the rusty spot. It melts the rust right off. I couldn't believe how fast it works.
So if you have any rusty chrome, give it a try!