Sorry to say John but you have more chance finding the Holy Grail than one of those.
I understand that they were only available when the cars were purchased new from the dealers, some were given to customers when they collected their cars as a token.
Some dealer sold them as an exclusive accessory, but from other bits I've come across they were supposed to have been issued in the same way the plaque was, one per car.
Very occasionally they come up on ebay, but I haven't seen one in years in the UK anyway, and they go for ridiculous money £250
(for a keyring?)
I've got pretty much everything: original order, sales invoice, press pack, launch photographs, sales brochures, Dealer 1:18 model, etc. but no keyring.
It's probably the sort of thing that a first owner might retain as a keepsake/memento, and not pass on.
I think 'Roland' has one, picture occasionally featured in random images.
Good luck with your search - I've given up looking.
