AFAIK, you can order any award and if you don't have the points, you can pull points from someone else's account (assuming the "someone else" is willing to let you have some of their points of course.)

Also note that while the T&Cs state this benefit is between spouse accounts, Marriott will actually allow you to pull points from any other account. So if you have a friend who has some points and wants to let you use them, you can pull points from their account as well.

Though I have never tried to pull points from more than one account, you could pull points from one account, then cancel the award. You will get all the points put into your account. Then order another award and pull points from a 3rd account. So it is probably doable if you have a couple of friends who want to give you their points.