Keep in mind that on a Croft-style terminator, there are no leads per se', the contacts are fixed onto the little zapper box and are comprised of two pennies that are attached to the outside of the little box - heads for the one and tails for the other. Croft builds all his zappers intentionally using a penny for the one contact that depicta an image of the queen of england - part of his overall message of the larger parasite issue that we are all affected by globally. The little box contains the electronics and orgonite; there are small holes in the box that allow wires from the output circuit to pass-thru and connect (soldered) to the pennies.

So, to answer your question "how do you do that with the forehead?, while lying on my back I place the zapper box on my forehead with the contacts facing towards my forehead; simple as that.

The original Clark-style zapper had actual leads - lengths of wire leading to the + and - contacts and the contacts are comprised of copper tubes AKA "handhelds", so yes, it would be quite difficult to zap the forehead with this style of unit. On her newer designs, the leads terminate in contacts that can be snapped onto a velcro band, the velcro band can then be wrapped around a portion of the body, like the waist, or leg, or arm, etc, so I suppose one could wrap them around the head.