I remember some of my first shinies ever. A Hariyama in Pokemon Sapphire, which when I found it I was scared shitless that it would use Whirlwind, albeit luckily for me it didn't; a shiny Gastly randomly found in Leaf Green when looking for Cubones; a shiny Shinx in my Pokemon Diamond that I used for my playthrough, a shiny Venonat in my Soul Silver game; a shiny Geodude... in the Safari Zone, which just like Hariyama I was scared to death of him running away (and once again, it luckily didn't), and a shiny Pidgey in a LG emulator run which sadly has since been lost, as well as a few others that I'm forgetting. I've actually lost the majority of shinies that I found in earlier games, either to me carelessly resetting games or being scammed out of them :( Also I've been finding lots of shinies in my Pokemon Y recently. While breeding for Horseas, I randomly hatched a shiny one, and the same thing goes for a randomly hatched Shelmet. Funny enough, those two and a Larvitar are the first time Masuda Method has actually granted me shinies, and all when I wasn't even trying to