The Beaker Folk of Husborne Crawley. They celebrated a wordless liturgy of Voiles and Tea Lights with music from whales (or Enya / Coldplay) and rituals featuring seaweed, rosebuds and hazelnuts. Not everything went smoothly but once the building had been evacuated, there was a shared experience of building a cairn. It is all very moving - do read the full account.
Archdruid Eileen has also shared the benefit of her experience after the blessing of cats service. (Hint: don't sprinkle them with blessed water.)