Doodle-Track Car
Draw the racetrack, and the racecar will follow! Doodle-Track Car follows whatever twists and turns you give it. Use a black marker or crayon, or go to doodletrackcar.com to design and print your own customizable racetracks. ($14.99)
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the car is not that cool and the name is even worse
you are going to need a lot of paper
WOW.
so how does it follow the black ink.?
cool
cool! though I could make this with the lego NT mindstorm, but this has designs and such!