There have been several people discussing what to do in Paris over Christmas.
Tuesday the Marie de Paris has announced that in fact the Tour Eiffel first level will again be covered with snow. They did this several years ago and it is back !
With your ticket to got to the first level - not only can you send a post card and take in a view but you will be receive snow rackets (like snow shoes) to anyone age 4 years and above.
http://www.tour-eiffel.fr/teiffel/uk/
btw - the weather has chilled considerable this week with low 40s as the high. Bring your layers !!
Joyeux Noel !