i have an action replay and have all the shinys.
a blue mew,a black charizard,blue starmie(the gem is blue,its purple)
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My first Magnemite was Shiny on LG...
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i have encountered with a shiny ditto. it was all blue. i even caught it. but my sister deleted my file
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I have had a shiny shellos (which i killed) and a shiny elecktrike (which I got but I no longer have game), and I don't remember getting anymore.

My friend had an action replay so she has a shiny everything - black rayquaza and pink kyogre and stuff.
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in my leafgreen i have caught a shiny graveler and a shiny diglett. both stay shiny when evolved.

From Wikipedia:

A Shiny Pokémon is an alternately colored variant of a Pokémon. They can be caught in any Pokémon RPG from Gold and Silver onwards, though the probability of catching or finding one is 1 in 8,192. The one major exception to this rule is the shiny Red Gyarados present in the Lake of Rage in the Pokémon Gold, Silver, and Crystal games. There are various other ways of increasing the chance of getting a shiny Pokémon. In second-generation games, breeding a shiny Pokémon with a regular Pokémon has a higher chance (1 in 64) of producing a shiny Pokémon. Also, in Crystal, the Egg given to players by the Day-Care people has a 50% chance of hatching a shiny Pokémon. In Diamond and Pearl, the Poké Radar can be used to "chain" Pokémon of the same type, improving the odds of a shiny Pokémon with each link (up to 40 links, when the odds are 1 in 200).

Shiny Pokémon are not necessarily better than regular Pokémon, although in Gold, Silver, and Crystal, they have better-than-average individual values. In the third generation, however, "shininess" is determined by another value, and shiny Pokémon are not effectively stronger than any other Pokémon in battle. Most fans consider shiny Pokémon to be collectors' items since they are so rare.

The term "shiny" is not explicitly stated in the games, and it is in fact a term invented by the Pokémon fan community due to the flash of stars appearing as the Pokémon enters a battle, unintentionally implying a sheen or crystalline property to the colors of the Pokémon. This minor animation was originally intended so that one could identify a Pokémon was shiny even if playing Gold and Silver on a monochrome Game Boy.[citation needed] Since first-generation games do not recognize shiny Pokémon, there is no distinction unless the Pokémon is traded to a later version. The term "shiny Pokémon" is not officially acknowledged in English media, although it seems to be a widely-used slang term in Japan; Ken Sugimori uses it in the title of a piece of artwork featuring a shiny Charizard. "Alt. Color" does appear among the options the player can choose filling out forms in the third generation of games.
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