the 50,000 mile level it costs $567.50 or about 1.13 cents per mile. we show that pride in the jewelry and clothing we wear, the bumper stickers we place on our cars and the signs we put in our yards! i am of the view that we do not need such a distraction at this stage. for example, it is common to pose a question to your classroom, receive one or two answers, let them know they are right or wrong, and move along. the box should be an inch or so larger than the item all the way around. 