Q: What did Mary Poppins want for Christmas?
A: Supercalifragilisticexpialisnowshoes!

Explanation: Did you see the “snow shoes” part at the end of that word?  This joke plays on the title of the song from Mary Poppins, Supercalifragilisticexpialidocious.  You can watch a video of the song on the previous link.  And there is a new movie about the making of Mary Poppins.  Anyway, I think snow shoes would be a great gift.

Merry Christmas to all of you who celebrate it!