- Body bag
- Fill with water, hang from a tree, put a hole in it and use it as a shower (sun will heat up the black plastic to make hot water)
- Wind sock
- Fishing net
- Storing air for use while swimming underwater
- Liner to use if you have to wear clothes that have gotten wet, such as in a cold climate
- Put something soft in it and use it as a pillow
- Put rocks in it, tie the end off and use it as an impromptu blackjack
- Put some holes in the top, attach a very light platform to the bottom, put a burner on the platform, tie some fishing line to the bottom with a wireless camera under the platform and use it as a hot air balloon to get above the treeline for recon. The bigger the bag, the better.
- Balaklava
- Put fruit inside, poke a hole in it and mash the pulp. Juice comes out the hole.
- Very temporarily store a gas like hydrogen for use in whatever you might need it for.