Bungee  Canadian jam or Arbor knot
Channel: Creative Redundancy
Date: 2015-08-11

Taking  bungee and C.J. knot  and combining them into a cheap and light weight with a high friction/low slip system. Can be used with carabiners,  para cord and molle webbing.  This setup could be use for first aid , shelter making and fire starting. ( depending on situation water and food too) More durable then traditional hair band, rubber bands while being more versatile than  ranger bands. Of course you can do this on both ends of the line if you need to.