1) Rotory control knob interface for potentiometers with decorative look of human nipple for use in any control application, personal or industrial 2) Refrigerator magnet as nipple 3) decorative ornaments including jewelry resembling nipple; Product only varies by the small base attachment i;e;; to fit spline shaft of potentiometer, magnet base or jewely clasp base; Upper nipple shaped portion is the same product or good