Washer dropped in Distributor/oil pump hole

You could use a shopvac with 1/2" rubber hose to get in nooks/crannies.
Good suggestion ...Ill try that , but first will try using an endoscope camera setup which i'll have to borrow from a friend...that should hopefully detect it. remember,... i said that the both the distributor AND the oil pump drive were out when it fell in so it may have ended up in the oil pan???