i thought i bookmarked it, but i can't find it. so here goes:
you're only going to use 2 fabrics for this.
cut 2 circles, same size, different fabs. right sides together, stitch all around. don't leave any opening. fold in the sides and press so that what's left is a square. this is your practice piece.
right where the fold is, make a tiny slit. this is where you'll turn the circle right side out. you'll be making as many of these as you need for the size you want and the size circle you want to use. it always works the same way.
now. when you have all your circles made and turned to make squares, place the finished circles face to face ( color a against color b), and stitch on that pressed crease. do that on all 4 sides. keep goingall around until you get to the size you want. don't forget to alternate. do it in rows.
now. flap over the .hmmm....flaps, and either topstitch or slipstitch and press. on the back you should see a checkerboard design and on the front you should see an orange peel design. make any sense?