I think this is such a great tradition to start with the girls, and it should be very entertaining as the years go by. I hope that it will be something that they will continue to remember and enjoy, and maybe continue with their own kids.
"What an enormous magnifier is tradition! How a thing grows in the human memory and in the human imagination, when love, worship, and all that lies in the human heart, is there to encourage it." ~ Thomas Carlyle