I got some live fire cord as a kickstarter gift. It's pretty cool, but it does have a slight smell to it.
Bootlaces would be a great use (especially since the cord core is the flammable part, leaving the cord sheath to hold your footwear in place!
I might make a knife lanyard or sheath wrap out of it, but wouldn't say, make a survival bracelet out of one... the chemical smell would get to me after a while, and I'm not really sure how skin fares with prolonged exposure the cord - may irritate it.