This project can vary from super easy to hard, depending on how detailed you want it to get. If you want the plain vanilla, don't worry about the embroidery-- if you want to learn more about hand-embroidery, drop me a line and I'll make a separate instructable solely on that.
Well, let's get started!
Step 1: Plan of attack!
Or you could use mine. That works too. (I'll giver you scans of all of the sketches for this project at the very end of this instructable.)
Step 2: Gathering your materials...
~ 2 9"x12" sheets of felt in your favorite colors
~A cool button, preferably 1" or larger in diameter
~An embroidery needle
~Complementary embroidery thread
~A sewing machine
Step 3: Measure and Cut
Ah, screw it. I hate axioms. Mistakes in craft projects make them seem more homespun, amiright? Lets just cut this thing and get it over with!
For your outside shell, you'll want a piece measuring 7.5"x6"
From your corresponding color, cut out two liner pieces measuring 3.5"x6"
Also from your corresponding color, cut out five pockets that measure 3.5"x2.5" for the pockets, and a strip that measures 1.5"x3.5" for the button strap thingie.