The origin of guest books goes back hundreds of years, when those signing their names would be witnessing and testifying to the reality of the marriage. The book was, therefore, signed after the ceremony. Fast forward to only 2 witnesses required to make it official...the guest book has evolved into a momento of those who attended your special day.
The term "book" has taken on many forms in recent years, with Etsy and Pinterest being the best sources out there for unique ideas. Keep your theme in mind...you don't want a rustic wood guest "book" if you are having an elegant affair. Also...imagine actually displaying or getting use out of it in years to come.
Enjoy this slideshow to spark your creativity, and head over to my Pinterest board for more clever ideas, and how to bring them to life.