I won a family heirloom in a "name picked from the hat" process with my five siblings. The object is extremely valuable, but its sentimental value is beyond priceless and it will never, ever be sold, so its value is simultaneously moot.
Aside from that, I played the lottery one time when the pot was whatever massive amount it was at the time ($600 million or something obscene) but I didn't win so I cut my losses and haven't played again. I've never done any other gambling (no moral objections, I just don't get the thrill and am too cheap to enjoy it) so no real chance of any "big wins," either.