My most cherished VMK memory also involves the bird hat. The first (and only time) I ever traded for one, I got the best deal ever. The person traded me not one, not two, but three (!) at once, along with a bunch of other good items. I forget what I traded, but it was terribly, terribly, unbalanced. I feel bad for taking advantage of the other player, but it was my favorite item in all of VMK. I would kill to get one again.
Also, I have a fond memory of going to a Main Street store in WDW for something related to VMK, but I can't remember what it was and it's driving me nuts lol.