I know a lot of you have done this on the forum already, but those of you that haven't, here's a quick run through of my process of removal and cover up.
The license plate bracket is held in by two rivets, so it's not a simple unscrew method. I started with a small drill bit and drilled through the front of the rivet, progressively moving up in size until I actually blew threw it. You'll feel it when this happens, you'll also start spinning the rivet.
Once I went through them both, I was able to pull the bracket off the bumper with little effort. You will find that the holes might be a little jagged. I took a stepped drill bit and made the holes smooth, sorry I don't have an image of this.
Once the holes were prepped, I picked up a couple plugs at my local O'Rielly Auto Parts store. The final diameter of my holes were 5/16.
http://www.oreillyauto.com/site/c/detail/DORN/464340BP.oap?ck=Search_464340bp_-1_-1&keyword=464340bp
Here's the final product. I'm thinking about paint matching them with a bit of clear coat but for now this will work. The girlfriend was nervous when I was drilling into her brand new car. She's happy now.