I have seen these for sale online and I would have brought one if I did not already have bundles of cord about. Also I do not throw everything away, my old bags get cannibalized for buckles, clips and the like. So using a guide I was able to make my own with bits I had spare, the side release buckle I used has a whistle built-in so it is doubly handy in a survival situation.
You can also make key rings so you can carry cord in a practical way when in an Urban Environment too.
