The mirror glass itself can be "popped" off, revealing 4 little tabs that holds the caps on. Used to be that you could buy the caps themselves, I don't know if that has changed or not. I traded with someone that wanted chrome. Another options is to buy a set off of E-bay as there are whole mirrors on there sometimes, and lastly you can rough'em up some and rattle-can them with some flat black.
The front door handles are a bitch as I understand it. I looked and decided not to do it. everything is black on my except my handles and my H2 logo. IMO the handles just aren't worth the effort to switch out.
You also have the rear license plate surround that has a chrome "brow" on it.