As far as I can remember i bought it off a trade stand at the Mayhem Masters in 1991/2 ish.....I remember the pereson selling them mentioning that they were made by a friend who made their own jewellery...can not remember much more than that due to age and the ravages of excessive alcohol on the old grey matter.
but i have recently bought an Angel and a Cocker one from a Millenium event from the "Serid" stand i beleive...so these sort of things are still available.