Adding boots to a makeHuman Model (adding accesories to a rig/armature)

Hey everyone, I am brand new to this forum (and pretty new to Blender as well). I am a Unity programmer looking to learn a bit about art, and so far I love Blender, but I could use a little help.

Ok, so I have made a model in MakeHuman, imported it into blender and out to Unity, and everything is great. I followed this tutorial

and was able to make a shirt, pants and gloves that are skinned/rigged perfectly to my characters rig.

But now I want to make some boots from scratch. How do I attach them to my rig/armature?

Any help would be greatly appreciated! Thanks