I gotta wonder what happens to everything around those quarter shrinkers. Seems like a good way to do the following
1) Deguass every TV in the neighborhood at once.
2) Pop every drywall nail in you and you neighbors house in less than a second.
3) Confuse the heck out of any boyscout with a compass in a 5 mile radius.
4) Make the national news by rerouting all air traffic going north to your house.