Lay the black steel pipe on a flat work surface. Turn the pipe so that its long side faces you and its ends are to your left and right.
Lay the yardstick along the length of the black steel pipe. Mark the pipe 8 inches from the left end, and give the pipe a quarter-turn.
Make additional marks every 8 inches, giving the pipe a quarter-turn after each one. Stop marking 24 inches from the right end.
Don both wraparound eye protection and your welding helmet, a NIOSH-approved respirator and full leathers, including gloves.
Weld the gutter screws points-out along the black steel pipe at the marked positions, at a 30-degree angle.
Weld four gutter screws points-up, on top of the black steel pipe, at 30-degree angles to the pipe.
Cut the sheet steel into 4-inch-wide strips, 24 inches long. Cut one end of each strip to a point to create a feather-like leaf shape.
Grind away any burrs along all the cut edges of each leaf.
Bend each leaf in half lengthwise and reopen it. Bend one-third of each leaf to fit around the pipe, beginning at the base.
Weld each leaf 2 inches below each gutter crew on the pipe. Bend each leaf into a more natural shape once the welds have cooler for at least two hours.
Put an ear of dried field corn on each gutter screw and stick the pipe in the ground at least 24 inches.