Some major stores are diving into mid-century modern Christmas decorations head first.
CB2 has a holiday collection that includes this mid-century ranch snow globe:
And this mid-century modern doll house, with what looks like a miniature Malm fireplace:
mid-century dollhouse I mentioned.
While West Elm is carrying these modern nut crackers, elves and Santas:
And these double globe ornaments that would look great on any silver christmas tree:
2013 update: If you're looking for the double globe ornaments, CB2 has similar modern glass ball ornaments for sale.