And then sell them on eBay – An easy buck or two can be made here.
Kirlian imaging is a type of high-voltage contact electro-photography. A momentary burst of high-voltage electricity is applied to a metal plate, creating an amazing image of the subjects corona discharge. Make your own 4" x 5" Kirlian images on color or black and white sheet film and paper using the Kirlian Photography Device.
A variable control sets the frequency of the electricity going to the discharge plate. You can also hook up an oscilloscope to monitor frequency (not included) and pulse rate data. Please note: This is not a toy; high-voltage electricity is involved. Exercise extreme caution.
More info: Kirlian High Voltage Photography