Taught to me by my father from his St Andrews Uni days in the early 60's:

Hitler has only got one ball
Göring has two but very small
Himmler has something similar
But poor old Goebels has no balls at all

Where was the engine driver when the engine boiler bust
They found his bollocks 10,000 miles away
Whilst searching in a pile of hay
His penis was found on venus
But poor old Goebels still has no balls at all