Holidazeling LEGO car

This fall we have a LEGO class for ages 6-8 making LEGO cars with lights to imitate the holiday parade in Minneapolis. What i like about this solution is that we discovered the square geared LEGO motors can act as generators. Asia and i discovered this ability when we where planning for a home-school class about wind power. Using that knowledge we will connect a breadboard to the motor with alligator clips. By pushing or pulling the car, the wheel will turn the generator and power the lights on the breadboard.