This sounds awesome! I was planning to do Happily Ever After in time for halloween but ... I got sidetracked and learned to start something like that way in advance!
1) Milka tries to prove to Elon that Santa isn't real, setting up a trap and everything ... and gets proven right. Elton is crushed but learns that Christmas is not a gift from St. Nick or obscurish religious figures, but from the money-driven-greedy manufacturers, retailors and marketing campaigners as a single, formless entity. Afterall, Christmas is all about receiving ...
2) uh-oh, someone's killed Santa Clause ... what do they plan to do? Why, ruin Christmas by trying to save it of course!
that's all for now.