 Interested in creating a modest line of colorful space toys, Kenner  Toys signed on for the merchandising shortly before Star Wars  opened, although they did not believe the movie would be a hit. When  Star Wars became a hit, they were unprepared to handle the demand  and produce enough Star Wars toys to handle the demand for  Christmas. Instead, they sold boxed vouchers for various toys. The  toys sold in the "Empty Box" campaign during December were not  delivered until the following March.