Here's a great Christmas song for harmonica. This tab is written for cross harp and requires bending )"=a whole-step bend).
The audio example is in the key of E on an A harp. Merry Christmas!  

Go Tell It on the Mountain

(Chorus)

-3    -3 -3"  3 2      -1 -2

Go Tell it on the mountain

-3" -3" 3 -3"       3   -3 -4 5 -4

Over the hills and everywhere.

3      3 -3" 3 2      -1 -2

Go tell it on the mountain,

-3    -3" -3" -3 3   -3" -2

That Jesus Christ is born.

(Verse)

3           -3 -4           -4   5      -4 -3

While shepherds all were watching.

3         -3 " -3" 3    -3" -3

Their silent flocks by night.

 3 -3          -4    -4       5      -4 -3

Behold throughout the heavens,

3           -3"   -3" 3 2 -1 4

There shone a holy light.

(Chorus)

-3    -3 -3" 3   2 -     1 -2

Go Tell it on the mountain

-3" -3" 3 -3"     3    -3 -4 5 -4

Over the hills and everywhere.

3     3 -3" 3   2       -1 -2

Go tell it on the mountain,

-3   -3" -3" -3    3 -3" -2

That Jesus Christ is born.