This plugin creates a new Spline primitive called "Orb". It can be used to quickly create orb controls for use in rigging, for example.
To use, either evaluate the script or place it in the startup folder to make it load on start.
#CAUTION# - 12/01/2015
I just noticed that when you create the Orb, the script creates a 0-size rectangle on the origin, which gives you dead vertices when it collapses the object. Will update ASAP.