Customize your characters by switching clothing: sweaters, swimsuits, space suits, gloves, wetsuits etc… Slowly turn your character into a zombie one limb at a time. Do all this at runtime and maintain one drawcall per character.
A new Mesh Baker updated has been released to the Unity Asset Store with character customization features. The update includes a script for processing skinned mesh parts so they can be merged seamlessly in Unity. Check out this youtube video for full details.