More ideas from G
This is a really neat idea. Each table has a number so have everyone from that table leave you a note for your anniversary that year. Maybe not whole books though, as it says on the thing. Perhaps a small notepad that can be easily stored, along with the others, in an old purse, and quickly decorated with stuff to make them identifiable.

Assign each table a different anniversary year (i. table 1 would be anniversary year etc.) and let the guests at that table write notes to be opened on that particular anniversary year (a unique alternative to a wedding guest book).

Looking for a unique way to display your wedding table numbers

Wedding Favors & Party Supplies - Favors and Flowers :: Wedding Stationery :: WeddingTable Numbers :: Elegant Table Number Vellum Shades (Numbers