The Thousand Year Sandglass (Book I) by B.J. Johnson is an Arabian Nights themed sourcebook for Labyrinth Lord (either original or advanced). It's part campaign setting, part rules, and has a number of adventures.
The setting is literally a giant hourglass. That is the whole world. I've used something similar in my game (coin worlds, each themed to a different god and culture), borrowing the idea of A. Merritt's Ship of Ishtar (in which an ancient world was accessible by a ship in a bottle). It's a good way to add an alien micro-setting to your game.
