https://i.ytimg.com/vi/Po9ZGU2r_WQ/hqdefault.jpg Blender 3d Modeling; beginners learn how-to create bone groups, how to assign & edit bone colors, understanding bone types and tools will help you build armatures for rigging your characters. VscorpianC Blender 3d Modeling and Animation program is open source software so you can download and use it freely. source