Are you're constructing these components in DBPro?
If so the easiest way to do it is to create a generic animated "skinny" model then use GLUE OBJECT TO LIMB to attach your new components. These objects will not use any mesh deformation though.
If you want to be more efficient, you could experiment with the ADD LIMB and LINK LIMB commands, but I'm not sure how you would create limb names for these new limbs?
If you're trying to use this to create changable clothing for your characters I suggest you mess around with TEXTURE OBJECT for a really simple solution.
Strings are PChars ??????? What a World