Instead of a guest book: For a New York City themed wedding, I chose 160 of the bride and groom's personal photos of NYC and used the Moo.com printing service to turn them into postcards. There is a small note and photo of the couple on the back. Guests chose an image special to themselves. It made for a fun table of images in a postcard rack and we collected completed cards in apple baskets. I will send several postcards a week to the bride and groom for the first year of their marriage.