
warning!
You ask about madness and anvil launching, I had a great Uncle who's idea of fun for 4th of July was putting a couple gallons of petrol in an empty 55gal drum in the middle of a field, screwing a spark plug in the bung (of the drum

), and hooking the plug up to a car battery.
I can tell you it leaves quite the impression on an 8yr old (not to mention the need for clean shorts

)!
Cheers
Jeff