Rod wrote:
Adrian wrote:
Rod (Rod ) gurgled happily, sounding much like
they were saying:

Have you considered zinc weathering from various forms of galvanised
metal? Rural fencing, roofs etc.

And tyre/wheel balance weights?

Ummm, they don't exactly wear, y'know...

They do wear from "sandblasting" and they certainly weather. :-)

And what happens to the ones that come off? I'd guess they slowly
corrode and disintegrate.

The way all the lead on old church rooves does?