After sixty years, a Rabbi decides to retire. Taking the box of foreskins he has collected over the years of doing circumcisions, he goes to a leather goods manufacturer and says to the man, "Can you do anything with these?"

The man says, "No problem, come back in two weeks."

After two weeks the rabbi returns to the shop, and is presented with a wallet. In total dismay, he says to the craftsman, "After sixty years, the best you can do is a wallet?"

The man replies, "Don't worry, just rub it a few times and it will grow into a suitcase."