Provide an example .blend for quick testing

[Sch1nken]

Hello, I'm having trouble testing the script. I am not very good with blender nor animation.
I downloaded an example model (pre-rigged) and I think I set all the bones correctly but my head just rotates around its axis (pretty weird...).

I'd like to test with an example model to see if everything is working correctly.

[filipzon]

Indeed it's quite hard to create armature that works correctly with unlocked axis. I would also appreciate an example used in presentation videos.