Martin's diligent gnomes

Hi All,
in a message Martin Taylor 2019.] (the first [ seems to be missing) Martin wrote about possible gnomes in RR - as a ridiculous possibility. I think I have seen a more detailed story (where some of the gnomes were called by their names etc.) about them from him but I cannot find it now. Does someone know or remember where it is?

Best reagrds and thanks,

Click the magnifying glass icon in the upper right corner
to start a search, type “gnome”, and press Enter. Here’s what that turns up for me: