I've made these and saved them for my Christmas Decorations. they are fun to do a very decorative bow at the top and have it wrap downward over the whole tree, or a star for your 'tree topper' and instead of ribbon you could also use strips of Stampin' UP! Designer Series Paper (or decorative scrap book paper).
How to make a NO-SEW Christmas Tree Skirt for less than $10! This is so easy! LOVE!