an upside-down chin. Pull string puppet A pull string puppet is a puppet consisting of a cloth body where in the puppeteer puts his/her arm into a slot in the back and pulls rings on strings to make certain movements such as waving the arms or moving the mouth. Push puppet A push puppet consists of a segmented character on a base which is kept under tension until the button on the bottom is pressed. The puppet wiggles, slumps and then collapses. Push puppets are usually intended as novelty toys, rather than as part of professional puppet theatre. Rod puppet A rod puppet is a puppet constructed around a central rod secured to the head. A large glove covers the rod and is attached to the neck of the puppet. A rod puppet is controlled by the puppeteer moving the metal rods attached to the hands of the puppet (or any other limbs) and by turning the central rod secured to the head. The best known examples of rod puppets are Jim Henson's Muppets, most notably Muppet characters such as Kermit the Frog, Miss Piggy, Gonzo and others, many Sesame Street characters such as Elmo, Bert, Grover and Abby Cadabby, and the main cast of Fraggle Rock. Shadow puppet A shadow puppet is a cut-out figure held between a source of light and a translucent screen. Shadow puppets can form solid silhouettes or be decorated with various amounts of cut-out details. Colour can be introduced into the cut-out shapes to provide a different dimension and different effects can be achieved by moving the puppet (or light source) out of focus. Javanese shadow puppets known as Wayang Kulit are the classic example of this.<ref>Currell, David, An Introduction to Puppets and Puppetmaking', p.7</ref> In China, it became popular from Song Dynasty. Sock puppet A sock puppet is a puppet formed and operated by inserting a hand inside a sock. The hand is opened and closed to simulate the movement of the puppet's "mouth" and give the impression of speaking. Sometimes eyes and other facial features are added to the sock in order to make the puppet more realistic. Sock puppets are popular in many puppet performances, as they are simple to make and easy to use. They are mostly used in satirical or children's works. Supermarionation Supermarionation is a method of puppetry invented by Gerry Anderson, which he used in his television