First of all Happy New Year to all my readers!
The dangerous debris I am referring to are the remnants of fireworks from the celebrations last night.
We stayed up until 12:45 until we were sure the fireworks had all finished. There were a large number of really big bangs.
Ruby went out for her pre-bed ablutions, and came back in, carrying the white plastic ring. DB removed it and also came in with the stick from the driveway.
This morning, before letting her out, we checked the gravel and found two bits of cardboard tubing and large thick shards of shiny and very sharp, purple plastic. Presumably these were the outer casings of said large fireworks.
As we went around our part of the village, more shards, in blue and green could be seen, littering both the paths and roads: