What is a Holy Hand Grenade?
This name was given by Don Croft to an Orgone device he invented, based on Wilhelm Reich's research, to purify energy fields (natural or man-made). They are not dangerous, in fact the name comes from an old Monty Python movie. More information can be found here About Holy Hand Grenade

What do they do?
They just quietly transmute Deadly Orgone energy (DOR) generated by mobile phone towers and disturbed earth vortexes, into beneficial Orgone (OR) energy. The OR will affect the behaviour of people, animals and plants all around them. Watch your neighbours become more friendly, your dog will love it, and your pot plants will thrive.

How do I use them?
Put them in your yard, (Super HHG are better for inside your house), near mobile phone towers and any antenna arrays.
Put one under the water supply pipe to your house.