A mohel(circumsizer) was retiring. Throughout his career, he had saved the foreskins of his rituals in a huge specimen jar as momentos, and now wished to fashion them into a souvenir. So he brought his hundreds of specimens to a leathersmith, and asked him to craft an article of fine artistic quality. "I'll see what I can do," said the artisan, "Check back with me in one week."

The mohel returned one week later, eager to see what magnificent article the leathersmith had made for him. The man presented him a wallet.

"All those foreskins and you only make me a wallet?" exclaimed the mohel.

The leathersmith replied, "Yes, but if you stroke it a little, it becomes a briefcase."