I found this DIY kit at Urban Outfitters. I am not typically a do it yourselfer, but I have $12 & about an hour's time to sew felt together.
This was a nice find, because most of the other choices I liked were over $100. It's only really necessary to cover up the ugly metal legs of my fake tree.
Plus, all of my great presents will cover it up anyway!
I'm almost there.