Well my computer crashed so I lost most of what I wrote so this is just a few quick suggestions.
DTD:
Days of Christmas Store: You could actually do themed here using the store items and displays as backdrops. They have some Disney holiday themed items, such as Santa hats. They have a count down clock that you could have the kids make faces that it is so far away.
Lego Store: Not sure what currently is displayed, but could do something with what is there. Kids could mimic the items on display or play off them.
World of
Disney Store: So many options here between displays and items for sale.
Epcot:
Do a collage style card with pictures of the kids in the different countries. Pick the spots that really show off items that are specific to that country or use a prop in one of the stores.
Take some books and have Belle and the kids all reading a book.
Have the kids looking down the well with Snow White.
Resorts:
Pop: 70's section has an over sized foosball, the kids could be the balls; Also there is a twister game that the kids could be playing
All Stars - So many over sized items that could be played off of
Any of the resorts with a beach: Kids dressed as pirates searching for treasure chest