I made these bracelets out of t-shirt yarn using a finger knitting method. All you need is an old t-shirt, scissors, and your hands! Start cutting the shirt into one long strip and pull on it every now and then to make it curl in on itself. You can either cut just enough for a bracelet or you can cut the whole shirt roll it into a ball. Then knit away to the length you want and tie off.
The tutorial for knitting can be found at V and Co.