Resurrected at a family gathering in Woking 7 July 2018 - memory stirred a little!

A good fat hen
Two ducks
Three plump partridges
Four sqawking wild geese
Five hundred Limerick oysters
Six pairs of Don Alfonso's tweezers
Seven thousand Macedonian horseman, all drawn up in full battle array
Eight flying flat bottomed mudscows bound from the straits of Peleponese, thence north to Alaska
Nine brass monkeys from the sacred sepulchers of ancient Egypt**
Ten prestidigators and twelve prestidigitatoresses all prestidigitating for better prestidigitatorial position
Eleven European dancing masters, sent to teach the Egyptian mummies how to dance, against Hercules' wedding day
Twelve discerning disciples sitting in a circle giving thanks to God that this memory test is over.

** Nine I could not recall, but it was longish and this version is probably as good as any!