A couple of my late husbands jokes.
A Jew fell over and when he got up apparently crossed himself. Why? He was asked. Spectacles, testacles, wallet and watch , was his reply.
Before the days of modern hearing aids. A market trader was offering hearing aids for half a crown. "but they are only pieces of string with a knot at the end." "You stick the knot in your ear and the other end down your shirt, everyone knows you are deaf and shout out loud."