The plant's basically foam and cardboard, which seems totally not safe at all for something that spews flame. The fireballs are made with the aid of powdered non-dairy creamer.
Artist Caleb Kraft admits, "Before going any further, let me point out that this is not the proper way to make a fire piece. None of these methods are particularly safe."
Well, nor was casting Bob Hoskins and John Leguizamo, but we remember how that paid off, right? Right?
Piranha power in action after the jump.