i read recently somewhere, that the hebrew alphabet was filled with such mnemonic divices.. aleph, is ? but beta is shaped like a door (and the hebrew word for door starts with a b, and gamel, is associated with camel (the shape, the sound.. ?) i don't know the hebrew alphabet.

just as S is sinuous, and snake like.. and snake starts with the letter S.. i don't remember learning or using mnemonics for the alphabet, (i did, and do for other things) but i have come across the idea more then once.