A clear flat folder that will "print" or change a playing card or business card, instantly, and visibly, with a flick of your thumb. Place a blank card in the folder, flick, and it's your visiting card, which you hand out - an impressive and magical way to produce one. Use it to capture the image of a selected card on a blank card, or change the wrong prediction card to the correct one. Or use it as a magic "polaroid" camera, and take funny pictures of your spectators. A prop with dozens of novel uses.