This makes no sense, but you find a shiny in grass, as finding a shiny is 100% random.
Yes, you will be able to find a Shiny Kyurem.
You can find shiny Pokemon randomly through out the game.
You can find a Shiny Stone in route 6.
activate the shiny code with action replay and then activate the shaymin evant as well so you find a shiny shamin
you can only find a shiny like 1 out of 1356.73
To find a shiny stone in platinum you have to dig in the underground tunnel.
where ever you find geodudes one could be shiny i found a shiny before my first gym it was in Oreburgh Gate on Pearl
You might be lucky enough to find a Pokémon such a Mica which is shiny. It is random if you will find a shiny Pokémon.
You have to find them by chance. Walk around where they are and maybe you will find a shiny ryhorn.
You cant find a shiny regice unless you have action replay
There is no better chance its just luck that you could find a shiny.
You just have to keep looking for a shiny Ralts.