Got started on the orc costume yesterday.  I made hiking shirts for the family a few years ago.  I took the pattern tracing I used for my husband's shirt (Kwik Sew 3299) and altered it a bit.  Changed the neckline to be a deep v-line.  We'll use some leather lacing on that to lace it up.  Also added 7" to the length.  Just extended the original pattern down.  I'll probably put vents at the bottom of the side seams.  I've got the fabric cut out and the shoulder seams finished.