This is the invite I did for my cousin's wedding last October. At the bottom is the response card and the Ghirardelli matchbook cover (they used these for wedding favors). It is a simple invitation but very elegant.
Here is another Wedding invite I made. I used the stamp set Together Forever on the front. I think the names need to be a little smaller but I really like the layout.
This is my first attempt to make a Wedding invitation with an inside pocket. I think it tuned out nice. The pocket is a little to big but that can be fixed.