I encountered a shiny Wurmple in Heart Gold during the bug catching contest and a second in White 1 on Route 15, a shiny Tyranitar. Before that I didn't run into any unless someone gave me one in trade; haven't bumped into a shiny in White 2 either.
Official Cresselia of the B/W2 Boards; when will there be an official Cresselia event? Official Darkrai of the PMD: Magnagate and the Infinite Labyrinth Board
Only shiny I ever found in the wild instead of being given was a shiny swinub back in crystal. I caught it cuz I thought it was a mess up in my game. Then I learned what a shiny was and the chances to get one, and was thrilled.
White FC: 2064 8774 3275 name : Janelle White 2 FC : 4342 0616 9985 name: Janelle
No shinies besides the obvious event ones in GSC. Game gods must hate me much for promotion of cheating back in R/S days. Or maybe because I am color-blind and miss obvious color differences that other people notice. Or because as soon as I get access to Super Repels, I use them as much as I can.
I wish you all luck, as it's truly a great feeling to find a Shiny in the wild. I know this from experience, but for the sake of not inciting jealousy, I'm not going to say much more than that.
Maybe... unless this happens to you:
Ah. Make no mistake, I'm no stranger to when Shiny encounters go bad. My very first Shiny encounter? I couldn't catch it. It was a Zigzagoon, but not at the beginning of the game- no, this one appeared immediately after I wasted all my Poke Balls on a Manectric. Then there was the Ditto in Gold I had to watch Struggle itself to death after I ran out of Poke Balls in the attempt to catch it... And the Crawdaunt in the Battle Tower... Ugh, and the Ekans in the Safari Zone, I don't think I need to go into detail on that one.
I can help a dull day go by so much faster, For I'm the rhyming fiend known as Missingno. Master.