- Press the button on front cover to make car horn sound Beep beep beep! It"s early in the morning. Children are off to school in cars and busses. People are driving to the office, to the carwash and to the supermarket. Delivery vans are heading for the town. But everyone gets caught in a tremendous TRAFFIC JAM! Remove the cars, trucks and other vehicles from the slots in this book and place them in the gatefold slots at the end to make up the traffic jam. Store them in the big delivery truck.