Step 1: Tie a Diamond Knot to Start

Take and end of each of the pieces of paracord and tie together using a diamond knot.
Steps are shown for tying the diamond knot.  if these aren't clear enough, search you tube for "diamond knot" for video instructions.
You will be tying four of these knots in the construction of this piece. 

Layout the knot as shown and then slowly work the knot into a ball shape, continue until the knot is firm.