Right during cocktail hour have your closest family sign your wedding guest book

Before you start sipping your great cocktail, you can always take some time to write down some memories of you and your loved ones. Maybe use some disposable cameras to get everyone involved in taking photos for the night and you can all put it in the wedding guest book. You can get your wedding book with a special engraving in the front just to separate yourself from the pack. Design your book with some nice material that fits you and your spouse's style. Have it match your theme or do something completely different that suits your taste. Just make it a focal point to draw attention to your book.