This is Steam Engine from Czech Republic, Prague in Dolní Měcholupy.
see http://amasci.com/holo/ Scratch-holograms can be made on CD cases using a couple of thumbtacks poked through a stick. Or get fancy and use a professional compass and black painted polycarbonate. Or automate the process with a paperclip stuck into a motorized electric eraser.
High voltage (~25kV) sparks and arcing from a computer CRT flyback transformer.