Reminds me of a similar event at Greenham, back in the day.
The Harridans for Peace presented themselves at the fence by Indigo Camp, each armed with a pocket mirror.
This was an attempt to reflect our war mongering and evil attitudes back on us. I believe the wish was that we self-combust Scanners stylee.
It ended badly when a few of the boys whipped out combs and used the time to get the hair just right, the better to chat up the less smelly ones.