The Altoids tin is strong and light and makes a good chassis for this air car.
You will need a balsa wood rubber band airplane - the kind with the red propeller is best:Guillow Sky Streak
You can buy these at most toy shops, hobby shops, discount stores, or drugstores for a dollar or so.
But you probably have a broken one already at home !
Hold the Altoids tin on the airplane's body and mark the tin at the center of the motor hook.
Do this on both ends of the Altoids tin.