Found a couple of interesting things. Here is the first
http://www.notifbutwhensurvivalstore.com/LightCube-Xtreme-p/light-cube.htm

And here is the second. The video is about 15 minutes long, but he talks about some versatile items toward the end.
http://www.notifbutwhensurvivalstore.com/product-p/instant-bowstring.htm

A quite interesting site
http://www.notifbutwhensurvivalstore.com/

For those of you that are aware of him, this site seems to be endorsed by Creek Stewart.