No sheet music, Kevin. I play mostly by ear.

The lyrics are easy to find, though, since these are old traditional songs.

Loo-lay, Thou little tiny Child,

Bye bye, loo-lee, loo-lay.

Loo-lay, thou little tiny Child,

Bye bye, loo-lee, loo-lay.

O sisters too, how may we do,

For to preserve this day

This poor youngling for whom we do sing

Bye bye, loo-lee, loo-lay.

Herod, the king, in his raging,

Charged he hath this day

His men of might, in his own sight,

All young children to slay.

And woe is me, poor Child for Thee!

Ever to mourn and sigh,

For thy parting, neither say nor sing,

Bye bye, loo-lee, loo-lay.

That's the Coventry Carol , which is a rather sad and sombre song of the Christmas season, as is obvious from the lyrics.  Dark and slow, I like to play it in the low voice of the violin and it could be a very effective touch of pathos in a little suite of holiday songs.  It is also pretty easy to play.  I learned it from a chord organ book as a kid, to be honest.

The Gloucester Wassail song, there are a lot of variations on the lyrics because it dates back to the middle ages.  I prefer to do it on a single string, as a warm-up that uses the pinky finger and where one can start slow and speed up as one warms up and maybe add a few embellishments as one gets into it.  Since it is a traditional carolling song, I generally feel one can take a few liberties with it anyway.  I hunted up a version, it is a little different than mine, and in a different key, but similar enough to give an idea of lyrics and etc.

http://sniff.numachi.com/~rick.....GLOUC.html

My version is from the "low part" we had to learn for one of those dreaded school plays back in grade-school.  It just felt good/fun to play when I tried it on violin.

I suggested them because they're easy songs, and they can use the low voice of the violin.  There are plenty of versions out on the net, but I could scribble up some score for the versions as I play them, if anyone wanted those.