Note To Guests On Wedding Program For My Wedding, I Would Love It If The Guests Brought In A Favorite Photo To Help Us With The?

For my wedding, i would love it if the guests brought in a favorite photo to help us with the? - note to guests on wedding program

Opening chapter of our new life. I want to start an album and a guest book / wedding vows personal notes, rather than with a traditional book. Do you believe in bad taste to ask for a picture on the invitation? or is required to date as a side note save the maps?