No one's mentioned the Rocky & Bullwinkle street show that was performed in front of Bull's Gym on the border between Production Central and New York. That was a fun show.
And the "commissary" where Monsters' Cafe is now, was called the Studio Stars. It was a great sit-down restaurant with a terrific buffet lunch.
Also, the dumb AT&T exhibit at the entrance to what is now Woody's KidZone.
Of more recent vintage, but sorely missed, is the real live talking Shrek who used to appear outside the Gardens of Allah.
I've been toying with the idea of posting online somewhere all the no-longer-there attractions in my old guidebooks. Call it "Dead Orlando" or something.