Hand Ciphers(users.telenet.be)
users.telenet.be
Hand Ciphers
http://users.telenet.be/d.rijmenants/en/handciphers.htm
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If you like this kind of stuff, definitely check out the book "Cryptanalysis - a study of ciphers and their solution" by Helen Fouche Gaines. It has loads of interesting hand ciphers of historical interest, going approximately through WWII. It also has tips for how to break them, and how to approach unknown hand ciphers for cryptanalysis (pretty fun stuff; I'm using it as a fun way to teach my daughter math and programming).