I saw this tarp looking thing on a high shelf and wondered what it was. Pulled it down to take a look. It was a body bag (unused of course). Bought it for $5. I'm going to have to play around with it a bit. If anyone has any bright ideas for using it other than its intended use, let me know.
22-Rimfire:
All the guys in my unit thought it was bad juju but it can be used as a hammock and as a bivy sack. Each of us carried our own body bags behind the kidney pads on our rucks and I figured that if I have to carry it I might as well get some use out of it.
It's not that comfortable as a hammock but beats nothing if you need to be off the ground. Just run some non-stretchy cord (550-/parachute-/para-cord stretches too much for this) though the 6 handle straps on it and tie it off to a tree. It helps to use a spreader bar (just notch both ends of a branch or if it's too flexible you can bundle 2 or more y-shaped sticks to each other) between the cordage at your head and feet. If you have some long branches you can also run those through to make it a much more effective, although narrow, hammock.
I would use my poncho as a hooch and use my sleeping pad, woobie (poncho liner), sleeping bag or both inside my body bag. Not the best bivy, but it does in a pinch, as long as you're not too superstitious!

You'll need to spray coat the outside to make it more waterproof, which reduces breathability greatly, so don't zip it over your head (or any other bivy sack. Climbers die all the time doing this). Condensation can be a problem, but you can reduce it by keeping your face out of the bag and if it's really cold you can cover your face with a towel, t-shirt, bandanna, etc.
It could probably be used as a game bag, too, if you're a hunter.