Materials: one lame tshirt that fits. I got my boy's 6x shirt at a thrift store. Optional: lace trim, chain trim, or any other cool embellishments.
You can also cut out the neckline, as I did, and either leave it raw or embellish it further. I hand-stitched chain around the neckline to maintain the "toughness" that the eagle print and army drab colour lends to the piece.
If you make a version, don't forget to post a link to your photo in the comments :D