With this tool you can add bones inside a mesh.
It was just a test so it's not finished and it's buggy. But instead of deleting it, I thought that even at this stage it might be useful to some of you.
You must have at least one object selected before you start creating the bones.
It doesn't work on orthographic views.
Loading more stuff…
Hmm…it looks like things are taking a while to load. Try again?