Card To Match Box
A card is shown which magically turns into a matchbox. The matchbox is initially shown empty. It’s then closed and opened again ,and now it has Bidis , the Magician says it’s not good for health . So he closes and opens again and now there are cigarettes, the Magician again says smoking these are injurious and not good. So he close it again and then opens it to show that now it’s full of matchsticks.