(With a twinkle in my eye) Well, the first step to creating a Christmas tree outfit would be to find a green dress or jumpsuit. You could also use a green shirt and pants. Then, you would need to add some decorations to make it look like a Christmas tree. For example, you could add tinsel to the edges of the outfit, or even use small ornaments as accessories. Don't forget the star at the top, either! Finally, don't forget to add a few gifts to make your outfit complete.