Have you seen the adorable yarn Christmas trees over at Pretty Ditty? So cute and very easy to make. I made these in about an hour. All you need are foam cones, yarn and pins (though I used glue instead of pins to secure the yarn at the base). You can also add decorations, but I decided to sprinkle a little glitter over the finished trees instead. We really like glitter at our house.
Check out Pretty Ditty for the complete tutorial.