At our church we are always reminding the little kids of the importance of their baptisms -- that when they were baptized they were marked with the cross of Christ forever. When they come up through the Communion line we retrace that cross, and bless them and thank them for being part of the Church.
Today at Bible study our pastor shared the following story: One of our little kiddos got into an altercation with another little girl in daycare, and the other girl clocked this one right in the forehead. The injured party went crying to her mother: "Mommy! She hit me in the cross!"