how to make your...
 

...own chrome?

As in, REAL metal chrome? Well, it's a scarce business that deals in it, I think Africa has a chromium mine. I don't think America has any Chromium deposits. It's highly toxic metalworking to deal with, as you have to acid-bath the metal to etch it to make it stick, etc. There is some plastic chrome spray, but obviously it's not the same thing. But it will be almost impossible for you to chrome plate anything yourself, unless you get the necessary permits to deal with the waste products of manufacturing and plating metal with it. Other than go to work for a chrome-plating shop. Good luck!