The message
from "david" contains these words:

Pity no one has handles covered in "Scotchlite"(The stuff they use on road
signs and on trimming on things like fireman's coats) on their tools, then
all you would need to do to find the lost tool is to go out at night with a
good flash light, they would show up so easily.

Funnily enough, I've got a forester's treeplanting spade made by
Chieftain Forge (Scotland, possibly Grangemouth) which has a something
very like that on the shaft; about the only tool that never got lost in
our last (very large) garden. It has a narrow blade infinitely useful
for all sorts of other jobs.

Janet.