One of the easiest build your own water energizers is the MEOW (Magnetite Effect ORMUS Water) kettle. This is a device made with 2 concentric cylinders, there the area between the two cylinders is filled with magnetite sand, and a water bottle is place in the interior cylinder and charged for 3 days. There are plenty of websites and even youtubes that explain how to make one yourself, and there are online vendors for the black magnetite sand, or if you live by a creek or beach with black sand, you can harvest your own.