My Gold must have been infected, because (before I lost it), whenever I restarted my Gold version for whatever reason, I always found a shiny somewhere. First it was a Shiny Oddish, then a Shiny Weedle. ^_^
Other than that though, the only other shiny I have seen (unless there is a shiny I had on my Crystal before I restarted and forgotten about it. ) other than the Red Gyarados is my Shiny Donphan on my Silver Game waaay back then. Sadly, I had lost the game since then, therefore I have also lost my Shiny Donphan.
Meaning at the moment, I has no shinies other than Red Gyarados. Woe. >: