Survival Bracelets wound from paracord, Discuss this on Boing Boing Gadgets
Each of these "Survival Bracelets" has 15 to 20 feet of 550-pound test paracord inside. If you ever need to use the cord for something, just unravel the binding. When you're done, you can send it back to manufacturer Survival Straps and they'll rewind it for you free of charge.
Most people probably wouldn't ever end up using it, but I think they're pretty attractive in a ultra masculine way. They're available in a variety of colors with either steel or plastic clasps for around $20-$25.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.