Here is a unique guest book idea for all of you out there that love puzzles! Instead of the traditional guest book opt for a personalized photo puzzle. Many photo companies such as ,Shuttefly or Snapfish will turn your ordinary photos into a personalized puzzle. All you have to do is pick a picture of the two of you. Then submit it to the company and have it turned into a puzzle. At the reception have everyone sign the back of the puzzle pieces and now you have a personalized guest book that is sure to impress. Plus it is something you can use again and again.