I make small magnetized nametags for my classroom. I cut tagboard into pieces about 1x1, write the students names on them, and stick magnets to the backs. I use the magnets that stores sell for business cards. One business card does four to six names. I use them for monitoring who is out of the room and for daily graphing. Every morning I put a question and a graphing grid on the board and the children place their name on the graph in the appropriate place. I've learned a lot of interesting things about my students this way.