The perfect idea for the FGT, plates that change their numbers, this should be an American invention
http://news.yahoo.com/s/nm/20080507/od_nm/plates_dc_1;_ylt=AvjSPiQH0Yw0ZBnlv1gdZIoE1vAI
http://news.yahoo.com/s/nm/20080507/od_nm/plates_dc_1;_ylt=AvjSPiQH0Yw0ZBnlv1gdZIoE1vAI