Started playing piano back in the 3rd grade. That dropped off about the same time I picked up the violin.
I've done lots with the violin. I've played in church, weddings, operas, etc. It's currently paying for most of my school since I'm in the school's orchestra.
My favorite experience though was when I played with a jam band... Fiddling. Nothing like being able to go into a bar, play for people who love your music and then get free drinks... That was back when I was 19 or 20 which made it even better.