How do I prop up a laptop screen with a broken hinge?

I have a laptop with a broken hinge. The broken hinge is cracked and exhibits no friction whatsoever when opening/closing the lid.

For now, the remaining hinge holds the screen in place. My concern is that this will stop working, allowing the screen to fall and crack.

Using only household items, how can I prop up the screen?

The simplest way would be to put something enough heavy behind the laptop screen to make it lean on it.