This is a chart I designed maybe ten years ago or so. It's one of my favorite Christmas songs, and my favorite rendition is on a Chieftans Christmas album.
 
The original kit came with the limited edition threads and a piece of linen. I have converted the piece into current colors of Sampler Threads and/or DMC, but feel free to make substitutions.
 
Holly! Holly! And the first tree that's in the green wood it was the holly!