"Looking at the groom's face is more priceless than seeing the bride's. however, it would be neat of one person to get the groom's and another to get the bride's and compare the two" I definitely want to do this.
The maid of honor could put this together. Have the mother of the bride, mother in law, bridesmaids, and friends of the bride write letters to the bride, then put them in a book so she can read them while getting ready the day of. The last page can be a letter from the groom. I hope my bridesmaids are this awesome.. :)