Speaing of the Pin series (1-9), I have located 1, 2, 3, 6, 7, 9 in the gift shops.
I just read above that #5 is given out if you create a character at a real Magic Kingdom park.
BUT, what I find interesting is that Pin #2 of that series cost me 250 credits, (or 10x what other pins generally run), and I also noticed that when I was looking through my inventory, the "Sell" button is disabled when I have Pin #2 selected.
In other news, when I click on the "Hidden Mickey Quest" curtain in VMK Central, it tells me I only have 48 HM's, but the game awarded me the 500 credit bonus and the Gold Oswald Pin for finding all 50, so I wouldn't trust that counter, as the game itself must get a true count of your Mickey's from something else.
I have mixed feelings about real life souvenier items in the parks real fgift shops containing codes for stuff in the VMK. I just have a bad feeling of someone looking over a $75 souvenir that they have absolutely no use for but "Mommy, it contains the top secret code to get the super, ultra power up, all my VMK friends have it, and the only way to get it is by buying this $75 toy"