HP Monthly Fanart Challenge submission for November. There's a poem that goes with it:
'Twas the night before Christmas in Gryffindor tower; each student was snug as a bird in a bower
But down in the dungeons, our Snapey was scheming and plotting away while the kiddies were dreaming
Snape didn't like Christmas, you see, not at all. (Perhaps 'cause his cauldron was one size too small)
But this year he would finally have peace and quiet, escape from the usual Gryffindor riot
Of crackers and dungbombs and god-awful singing. Snape hated that noise, how it left his ears ringing
He'd hitch up a dog (and he knew just the one) to a sled, and put in Christmas stuff by the ton
Then he'd take it away and he'd set it on fire, and do his Snape happy-dance all 'round the pyre
You probably think that his plan can't succeed, and that someone will stop such a naughty misdeed
But brains and ambition, I'm sorry to say, trump courage and good intentions any day
So next morning the cry could be heard round the school: "Merry Christmas to nobody!" Slytherins rule!