I Have To Make My Own "Black X-Mas" - I'm Fucked.

Although I'm not "doing" Christmas this year (no songs, no presents, no cards, no well-wishes, no cake, no ridiculously extravagant meals), my Mother has told me that today is "my year" which in our family means that I get to choose all the decorations. Last year we had "teddy Christmas" as per my sister's request and this year I told my Mum I wanted a "Black Christmas" which means: a black Christmas tree and all manner of creepy decorations in dark colors. My sister flipped but my Mum thought it was a lovely idea (and by that, she means: "Zac's getting involved in something creative, encourage it at all costs"). The thing is, I never thought she'd go for it and now I've gotta actually do something, the whole point of this post is to beg for help, any ideas? Keywords include: Christmas, horror, creepy.

Oh, and bonus points if anyone can tell me what movie the image for this post is from.