Binirit and Sharp have both released Christmas-themed D-Mods, to celebrate... um... Christmas, I suppose.
Binirit's D-Mod is called Dink Smallwood's Christmas, and weighs in at 1.2 MB. Sharp's is called Christmas Adventure: Search for Santa, and is a lightweight at 350 KB. Neither included much detail, and I haven't tried either, so there shall be no details detailed here.
http://www.dinknetwork.com/screenshots/wc_is_santa.jpg
WC is Santa!