My first shiny was probably a hatched baby from breeding the red gyarados in gold but I don't remember which ones I breed exactly. My brother caught a shiny geodude with selfdestruct on my LG when I let him play it but that doesn't count either.
My first shiny was a HG Kyogre I found when I was soft resting for a good modest one.
"In truth, they haven't been allowed for ages, we've just never enforced the rule" -SineNomine on presigs
I can't remember which came first. Both were in Pokemon Silver.
One of them was visiting the first major cave you have to go through. Gold geodude. I caught him and named him Nugget.
The other one I actually used, and was a shiny crabby which I evolved into Kingler. He was an absolute BEAST, i think he had flawless IVs or something. I got the crabby from fishing in the little lake below Goldenrod in the backyard of the Day Care for lols.
(On Resident Evil Revelations) "4/10. The campaign was great, but the originality to Raid was stolen from Pokemon..." -CPU-Z
Noctowl. Totally random, I didn't even know about shinies before and failed to notice the shiny sparks. Still caught it, because I wanted a Noctowl anyway. Took me 2 weeks to figure out what the hell was wrong with it.
"Evil, beware. We have waffles..." - Raven, Teen Titans