Cardboard Cars for a Homemade Drive-In Theater April 19, 2013 By cindy312 Sharing is caring!ShareTweetPin3shares Make cars out of cardboard boxes, duct tape, spray paint and paper plates. Then pop some corn, climb into the cars, and turn on a show for a totally awesome drive-in movie at home. Get the instructions for ––> Cardboard Cars for a Homemade Drive-In Theater