Abstract: A head gear manipulator for an invalid comprises a helmet, an arm carrying a gripper, an electro-motor operating the gripper in response to muscle movements of the invalid wearing the helmet, wherein the helmet consists of a blank of thermoplastically deformable sheet material having a center portion and a plurality of arms radiating from the center portion, and a longitudinally adjustable circular band mounted over the free ends of the arms and connecting the same. A mounting is affixed to the center portion for holding the arm carrying the gripper.