String another piece of styrofoam onto your rope or wire. Push it down so it rests on the bottom of the clay pot. Now, string another clay pot onto the rope or wire. The second clay pot should be pushed all of the way down so the inside of the pot rests on the foam. It should also overlap the first clay pot by a few inches. String on more styrofoam and clay pots in this fashion until you have a set of 6.