I don't know how it is elsewhere in the world, but here in "the States" we're in the thick of "Christmas Season." To translate: Christmas Muzak is inescapable. So, why not contribute to the din?
I'm polishing up a few of the lead sheets I use on holiday gigs and posting 'em for you. Here's what I've got for you so far:
G-d Rest Ye, Merry Gentlemen (based on my big band arr.)
Silent Night (based on my big band arrangement)
These free downloads are lead sheet packs that include all of the instrumental transpositions you'd probably need.
Ho, ho, ho!