Someone posted the MVMCP park map for 2007.
It shows the follows CS locations open during the party
Casey's Corner
Main Street Sweets
Pecos Bill Cafe
Westward Ho
Turkey Leg Cart
Churro Wagon
Sleepy Hollow
Mrs. Potts' Cupboard
Pinocchio Village Haus
Cosmic Ray's Starlight Cafe
The Lunching Pad
Auntie Gravity's Galactic Goodies
It appears that the Noodle Station and Columbia Harbour House are used as cocoa/cookie stations. I know CHH has been one in the past. But they should be open until about 6:00.
We were at the party on Thursday, November 15th. Tomorrowland Terrace was a hot cocoa stand. In fact, the Noodle Station appeared to be closed both other times we were at the MK as well.