headwand or headstick
A pointer or extension device that is mounted to a headpiece and extends from the center of the forehead and angles downward. It is usually used in direct selection of an object such as a key on a keyboard or a symbol or word on a board. It is for use by persons with good head control and limited upper and lower body movement. If the pointer extends from the chin, it is referred to as a chinwand or chinstick.