Signature books for visitors are a lot of fun. In them are engraved the good wishes of the guests to the celebration and together with a Polaroid camera can become the most beautiful souvenir of a celebration.
What do you need for your signature book?
The essential will be a large sign explaining the procedure, along with a camera and an album with blank pages to stamp signatures and messages.
The sign can be purchased online in a personalized way. There are stores that specialize in this subject, where you can buy your welcome sign and print it in any size.
You can get more ideas from here: https://www.pinterest.com/pin/6051780735808350/