This was drawn using a Heavy Duty Toshiba battery (AA 1.5v) in MSpaint as a makeshift stylus pen on my laptop touchpad. If you decide to draw with a battery as well, touch the anode(-)(must be 1.5v) against the touchpad. Do not use it on a smartphone or a tablet, they do not have resistors like a touchpad does to withstand 1.5v, and youll fry the conductive field.