THE VICTIMS: His family
While Ken is,
according to his sister Mary, an unusually elaborate prankster, one of his simplest tricks will work anywhere. Just superglue coins to the pavement. You'll need to find a spot that is both heavily trafficked and suitable for gluing; a front sidewalk or driveway works well, though you may need to clean the surface to get the coins to stick.
THE REACTION: Broken fingernails are not out of the question.
