If you are on a rom, then I suppose you could use a cheat to make everything shiny.
If you are on the actual game, you need to find them the old fashion way, just keep walking in the grass, or Surfing or wander through the caves. It takes time, but you can find one.
Yes you can
You can find a Shiny Stone in route 6.
You just have to keep finding pokemon and eventually you will find a shiny. The chance of encountering a shiny pokemon is very low, but eventually you will find an shiny pokemon.
route 1
A black Rayquaza is a shiny so you'll have to be very lucky for the Rayquaza you find to be shiny.
route 1
If you mean how to get shiny pokemon in Black and White, then it's all by chance. The odds to find a shiny are 1 in 1892. That's only 0.0122% of a chance. They are random to find. You can also use Action Replay to cheat yourself some shinies.
You can find shiny Pokemon randomly through out the game.
It's mainly luck if you find a shiny Pokemon in Black. I was lucky and found a shiny Onix (yay) in Pokemon Platinum, but it's really rare. You're more likely to have your Pokemon get Pokerus (long story) than you are to find a shiny Pokemon. my best advice is to just go out and search grass like crazy. and FYI, i had played my Platinum game for more than 200 hours before i found the onix. ~Akiza
You can get shiny Pokemon everywhere.
Get a shiny (gold) Charmander in the beginning of firered ,shiny Pokemon evovle shiny
Nope, completely random.