It is also the only mod I've done that comes with textures. They're not very good. If you can help out with better ones please do so!
Download: https://github.com/Sokomine/compass/zipball/master
Browse code: https://github.com/Sokomine/compass
License: WTFPL
Depends on: nothing
Two compasses, player looking east-north-east:

A compass at night:

Several compasses, illustrating how they work while beeing passive nodes:

How to craft one:

