I know that you can get the PB&J shake at the 50's Prime Time Cafe and the Tune-In Lounge. Is it available anywhere else at WDW? Can you find it at any of the resorts?
That's what I thought too. I was hoping to be wrong though - LOL! My FIL will be at WDW for a day - he absolutely loves these shakes (they are good!!!!) but the Studios aren't in his plans. I thought that I would ask for him, hoping to find it available elsewhere.
Maybe somone will post something different, but I've been to a lot of the restaurants at Disney (definately not all though), since we like to eat at our favorites. You never know.