toto konkretne asi nie:
The traditional "Pharaoh's serpent" version of this firework produced a more impressive snake, but its operation depended upon mercury thiocyanate, which is no longer used because of its toxicity. (http://en.wikipedia.org/wiki/Black_snake_(firework))
ale taka demo-varianta by mozno sla:
http://chemistry.about.com/od/chemistryhowtoguide/a/blacksnakes.htm