I know there is a topic like this for PT, but I don't think we have one for the canon games. So... What shines do you have? I'll start off by saying I traded a Snivy for an egg on White, and it hatched into a shiny Dwebble.
I had a shiny shellos/gastradon in diamond
and I had shinies in pokemon gold (which I've reset a few times and no longer own cos I gave it away)
in pokemon gold though, I had a shiny onix and then in a different reset of the game I had a shiny graveler.
I also managed to get a shiny ditto one time by using a glitch that involves trading the red gyrados to pokemon yellow and teaching it mimic.
P.S. When I say Pokemon Gold, I literally mean Pokemon Gold (Gameboy Colour Version), although some of those shinies might be from Pokemon Crystal