Assembly devil hat/ helmet hat. This is how you sew this pointed hat together. Back of hat = bind off row, i.e. 2 whole points and 2 half points. Sew hat tog, edge to edge along bind off row as follows: Sew first half point to one side of the first whole point. Sew the other side of first whole point to one side of second whole point. Then the other side of second whole point to the last half point. At last sew hat tog mid back.