Shadow puppets are a mysterious and wonderful kind of puppet. If you have ever made hand shadows (used your hands to make shadows that look like animals, etc.) on the wall or have seen shadows cast by a flashlight on a camping tent wall then you already have an idea of how shadow puppets work. What you need to create the magic of shadow puppets is a screen on which to project the shadows (-light must be able to pass through it–it could be a sheet, tent wall, big piece of paper, etc.) a light source (could be the sun or an artificial light –flourescent lights do not work well) and a shadow puppet (an object that will cast its shadow on the screen.) Here is how it works… Link.
HOW TO make shadow puppets