A bag of corn husks
Paper birthday hats
Glitter to match your paint
Start by disassembling a paper hat. Then, reshape the cone to a thinner, taller cone, and hot glue shut. I tried a tree with out thinning the cone, and it looked like a birthday hat tree. Not so great. You can make smaller trees by disassembling a hat, lying flat and trimming the bottom edge staying with the curve. I trimmed one down about an inch, and another about two inches. If you want a taller tree, you can trim about 3" off one hat and glue it to the base of another hat.
Next, Cut up your corn husks into 2" x 1 1/2" rectangles with the grain of the husk running long. Then, round the bottom of the rectangles with scissors into a scallop shape. Don't worry about being perfect. They don't all have to match. For the smaller trees, cut the rectangles a bit smaller. about 1 1/2" x 1".
Take one long corn husk strip and glue it around the base of your tree form, and trim off any extra so your tree sits upright properly. This is to hide your hat once the tree is finished. I figured this out after the fact, that's why it isn't in the next photo.
Then, start at the base of your tree hot gluing corn husk strips so the scallops just touch the edge of the bottom. Continue all the way around. Next, start another circle up about 1/2 an inch up and stagger the strips like you are laying bricks. Keep going until you reach the top! You can take a pencil and turn out the edges of your "boughs" just a bit if you'd like. Your finished, unpainted tree should look like this:
Now, set your tree right up on the mantle where it belongs! Enjoy!