When I was a teenager, I took my dad's old Vietnam helmet liner, a sheet, and a bag of rocks for ballast, and made a ghost out of it. Then I strung a piece of clothesline from the top of the porch across the driveway, and up into a tall tree, at maybe a 30 degree angle down from the tree. Hung the ghost from a pulley on the clothesline, and had another length of line loose attached to it.
I just stood in the crook of this cottonwood tree waiting for kids to come. They'd get their candy, and I'd let the ghost go. So much screaming. Reel it back up and wait for the next group of kids. The only part of it that came anywhere near touching anyone was the sheet hanging down, everything else was always much much higher than head height even for an adult.