Easy box script needed please

Hello, I say "Easy" because from the works I've seen here, you guys are pros compare to me. I know how to install and use Scripts, but not make them.

Please help me with this :

1. I have a mesh/poly (a teapot)
2. I'd like the teapot to be hollow (similiar to Extrude or Bevel)
3. Basically the teapot would be made of boxes. Hollow on inside. Same shape as outside.

I've selected all Vertices and hit the "Break button". Now the Teapot is made of individual faces. I extrude the faces but they are NOT closed, so i add a "Cap holes" modifier.

Once the "Cap holes" modifier is added all the faces are boxes, But i need each box to be snapped together.

By snapped together I mean, that the outer verts are snapped together, all edged "touching but not welded together.

If you guys beed pics or a better description, please ask and in no time I'll post here.

Thank you ALL in advance, for this and for all the great scripts posted throughout the years. :O)