How to make a cast of lightning on the tree

Team YouTube channel showed one way of creating paintings of the distribution of spark discharge on the dielectric surface, also known as Lichtenberg figures or petrified lightning. This will need a wooden Board impregnated with one hand the Pepsi or Coca Cola (as you wish) and a microwave serving as a source of high voltage of several thousand volts. With the passage of the charge to generate high temperature and pressure, under the influence of which on the tree burned the impression of “lightning”. Similar paintings can be created on a cutting Board, and what do enthusiasts.