This is a great idea! However, this is our first trip, I don't have a picture to insert into the photo frame or mat, should I give them a blank frame to sign?!![]()
first of all welcome to the DIS!!!!

Don't worry about having a photo to put in the frame before you go. My photo mats will be just blank mats and your frame can be a blank frame to start out with. The photos go in after you get home.