Plumbers Jointing compound (KT14)

Hello, This is a long shot, but I have FAITH in the powers of TrashNothing.com and the internet.

Is it possible that someone has the last end of a pot, lingering in their garage-shed?

I am looking for a bit of Plumbers Jointing compound , used when tightening a compression fitting on a copper water pipe. In my case, I am replacing my toilet, and need to fit an isolating tap on the supply to the toilet cistern.

I am hoping that someone has a pot of Plumbers Jointing compound , in their garage/shed or the end of a pot with a teaspoon left, that I can use for this one job.

Thanks for looking, kind regards, Bill