This is a simple addon that I made a few months ago, at the time I did not have internet so I am releasing it now, its basically just a panel of convenience, try it out and let me know what you think.
[ATTACH]177306[/ATTACH]
Here is a screenshot:
All this functionality can be found elsewhere in Blender however the “Shape to Bone” can be very useful for snapping custom objects to a bone in order to quickly modify it in edit mode.