There is an infinity of one-object worlds, each containing a distinct individual (e.g., a blue 8lb bowling ball, a red 10lb bowling ball, a pepperoni pizza, a bicycle, etc.)

Yes, indeed, there are. At least Leibniz thinks so. In his view, as we saw above, there are an infinite number of possible worlds – worlds that God did not see fit to bring into existence. Now, given that Leibniz's safe claim is that “[t]here are as many possible worlds as there are series of things that can be conceived that do not imply a contradiction,” (Grua 390) it might still be the case that there is only one possible world – only one set of essences that implies no contradiction. If we a