I suggest using soda bottle caps, or maybe even Gatorade caps since they're larger and allow for more distance traveled.
I would use bottle caps or CD's
Make up the car body and turn upside down. Cut the bendysection off the straws. Tape the straws onto the base of thebody making sure they are parallel and about 2cm from the frontand back edges.2....
1. Put your car on a flat and smooth surface
2. Blow up the balloon and twist it so air doesn't come out
3. Attach, tape, or glue, however your car is made, to your car
4. When it's ready let the...