Love this idea. Guests write a message, pop it in the bottle then the bride and groom open them on their first wedding anniversary. Nine alternatives to the traditional wedding guest book
A unique DIY for your wedding guest book: Create a photo puzzle using your favorite engagement photo and set out the puzzle with pens for guests to sign. You'll have a keepsake that will be pulled out for years to come.
Wedding Guest Book Alternative, Fingerprint GuestBook Poster with Thumbprint Heart, Canvas Guests Sign In for Reception