step-by-step photographs and text showing how to bend keys and cutlery by trick methods. Some novelty or magic shops sell self-bending spoons (utilizing the physical properties of a shape-memory alloy) which can be used by amateur and stage magicians to demonstrate "psychic" powers or as a practical joke. Such "self-bending" spoons will bend themselves when used to stir tea, coffee, or any other warm liquid, or even when warmed by body heat. Simply holding a spoon by its neck and rapidly tilting it back and forth can also create the illusion that the spoon is bending, due to the way that the human eye perceives the rocking motion. See also Bent Spoon Award References Further reading Gordon, Henry. (1988). Extrasensory Deception: ESP, Psychics, Shirley MacLaine, Ghosts, UFOs. Macmillan of Canada. Marks, David. (2000). The Psychology of the Psychic (2nd Edition). Prometheus Books. External links Spoon-bending for beginners: Teaching anomalistic psychology to teenagers by Chris French. Uri Geller Caught Red-Handed by Massimo Polidoro. PK (spoon-bending) Party: format and materials by Jack Houck 1982 Magic tricks Parapsychology Paranormal terminology