[Here's a Start---more to follow|http://boyslife.org/games/online-games/577/multi-code-machine/] * Morse* Finger spelling, hand-and-arm signals* Finger spelling, hand-and-arm signals [c.f., British Sign Language|http://www.videojug.com/film/who-stole-the-cookies-in-sign-language] * Braille * Ascii * Nautical Signal Flags * Semaphores