Mozella, this was 50 years ago
Take one Ministry ashtray, invert top, place two Roman candles therein, liberally douse with lighter fuel and ignite.
And that was one of the lesser stunts.
At one 'do' the band was blown up with a thunderflash resulting in an on-the-spot rebuke - followed by an anxious wait until Monday to discover if it was going to be 'taken further'; it wasn't.