Making Poppers From Upholstery Thread Do This First
Poppers are made with heavy nylon upholstery thread. You get a hook (teacup hooks or larger work) and screw it into a stationary object. Loop nylon thread through it and back around your fingers near the spool. Make about 7 or 8 complete circular loops - loop length should be twice or more what the finished popper will be. Cut (this stuff is too strong to break) the thread and tie the 2 loose ends together.
Making Poppers From Nylon String Start Here
Hold one end with your fingers of one hand then twist the thread or string until it becomes quite tight. You'll know it's tight enough when it starts to kink. At this point Fold the piece of string or the tied off Upholstery thread in half and it will twist up on it's self and form a tight loop at one end. Now tie an overhand knot anout 3 inches from the loop. (longer or a shorter depending on the length you want to pooper to be) Cut after this knot about an inch or so out, to make the fringe. Trim as you like.