Collect messages in a bottle as your guest book

Elizabeth and Steve's old school Nintendo wedding featured Marios and Luigis and Thwomps and Fire Flowers galore. One tiny detail that we especially loved was their message in a bottle guest book. They offered theme-appropriate colored Post-Its, pens, and small bottles so that guests could write them a note for the future. I guess being married is a little like being on an island sometimes. You've got to get advice from off shore sometimes.