This is a handy way to make a sling. What makes it handy? You don't need to use two pieces of cord, and if you need the rope for another reason quickly, you just untie the finger loop and the stopper knot, pull the string through one hole, than pull! I find that this would be handy in survival situations, as you would not have to cut valuable cord. It is easy to make, and it is easy to get the cord back. For more resources on slings, including how to make them, use them, and more, visit: slinging.org
I AM NOT RESPONSIBLE FOR ANY DAMAGE TO PROPERTY OR INJURY TO PERSON OR ONLOOKERS. BE CAREFUL! THIS IS A WEAPON, AND COULD SERIOUSLY INJUR OR KILL SOME PERSON OR ANIMAL. I WOULD SUGGEST NOT USING INSIDE.