Message in a bottle guest book (people can write messages of their well wishes, or a piece of advice, or answer a question you ask them. For example, what is your favorite memory of the bride and groom or what should we name our first child, etc.
Thanksgiving is right around the corner! Forget the fancy kid's table tablecloth this year! Turn the kids table into a table to entertain. Put down butcher paper instead and have the kiddos draw and write what they are thankful for this year.