Pyramid Energizer Tray

After reading the book “The Pyramid” by Les Brown I wanted to experiment with his pyramid energizer and see it's effects on plant growth.  I have no idea if using plastic instead of cardboard (like Les Brown's energizers were) will change anything. According to the book you need to set a piece of cardboard wrapped in tin foil on the points then set the plant (or whatever your experiment is) on top of that. One of the sides will need to be facing magnetic north which is easily done with a compass.