Help with blender 2.61, making character mount points!

i have a 3d model of a person witch has basic rigging, so im making a game that consists of character customization (like armour/clothes) so I'm wondering how to make mounting points on a rigged person and on a piece of armour(if it's needed) so i can put them in my game so the armour can be put on the person an removed on demand... so if anyone can point me to a tutorial or give me some advice on what to do....

NOTE: I AM USING BLENDER 2.61 & THE ENGINE IS UNITY 3.5

Any help is greatly appreciated,



Thank you