Winter holiday identification challenge

I've added a new card to Snarkface, figuring it would be fun to cover as many winter holidays and festivals in one greeting card as I could fit on the front. I did some research online and was surprised by just how many there were. Here's the card I came up with (click on the image for the option of examining bits of the text closer up):

Happy Hanukkah Samhain Kwanzaa Sadeh etc. etc.

Of all the holidays and festivals listed above, several are fictional (but are based on holidays mentioned in books, tv shows and other media). One has nothing at all to do with the winter holiday season.

My challenge to you: Without cheating by researching online, which of the fictional holidays do you recognize? Which one do you think has nothing to do with winter at all?

Comments

[Rick Innis]

I'm not sure I'd consider Samhuin or Eid to be winter festivals...Hogswatchnight is the obvious fictional one (to me anyway.) Fur Rondy sounds made up yet also odd enough to be celebrated in some tiny English village.

[Technoshaman]

Something twigs at Lupercalia as being a spring holiday?