My students need nametags all year long because they're useful for visitors making presentations to the class. Many have told me that it's helpful to be able to call a student by name. I make my nametags out of four inch square pieces of poster board. This is a good size to read from far away. I write the child's name on both sides in large letters, laminate them, punch a hole in them and then thread them with yarn. They last the entire school year. If a tag turns over, the name is still there.