Cut PVC pipe to length (5 ft.). Drill holes in pumpkin buckets for PVC pipe to fit snug on the pipe.
Position tomato stakes around PVC pipe, zip tie temporarily, and hammer stakes into the ground. Zip tie again once stakes are positioned properly. Apply duct tape to ends of tomato stakes to keep from poking fabric.
Mark at the top where the bottom pumpkin (chest and shoulders) should sit. Wrap duct tape around the pvc pipe below the mark and slide pumpkin onto PVC, positioned upside down so that the base of the pumpkin is facing upward.
Make Arms. Cut two 18 inches length of yard fabric. Roll and secure by cutting a hole to slide over pvc pipe. Slide down pvc and on top of bottom pumpkin head.
Drape yard fabric over witch form and center it evenly. Cut a hole to slide over PVC pipe. Stuff the bodice with trash bags if you want more fullness and fasten sides with staples or safety pins.
Cut off enough tulle to cover top pumpkin head (this was 24 inches for me). Drape the rest of the tulle over your structure and tie rope around the bodice to create the waist.
Slide second pumpkin head over PVC pipe, opening upward. Put the face backwards. Insert remote controlled or string lights on a timer inside the top pumpkin. Apply duct tape to the opening of pumpkin bucket to prevent water from collecting inside.
Drape mesh over the pumpkin head and tie at the bottom. Adjust tulle around head as necessary,
Attach hat to the head and secure with the bungie cord. Stuff with trashbags to keep stiff, if desired.
Tie or attach the arms together.