Steve Lodefink, one of the most creative and versatile DIYers I know, made this beautiful Planet of the Apes tunic from scratch. He's posting his build notes on his Finkbuilt blog.
I started working on the costume shortly after last Halloween, by making a paper pattern, but I set the project aside for the following 9 months or so. But with Halloween creeping up, I thought that I’d better haul it out and work on it again.POTA Chimp Costume Update
I got some fabric on sale at Wall-Mart for $1/yard and dyed it green. Then I cut out and stitched together the front and back panels to form the torso. I sliced the sleeve pattern into 3 strips in order to form the 3 panel sleeves that are customary for chimpanzees. I spaced out the 3 pattern pieces to account for seam allowances before I traced and cut out the 3 sleeve pieces.