The heads are heads of garlic in his basket, and the one eye is his. It was meant to get a laugh, and it still does.
A creature came walking into a meeting where many wise men sat. It had one eye and two ears, two feet and twelve hundred heads, a back and a belly, two hands, two arms and two shoulders, one neck and two sides. Say what it is called.
Give me a hintThe hint
The twelve hundred heads are for sale.