One of the most gratifying achievements for a professional model maker is perfecting the art of duplication.  The look, feel, and finish had to be just right with this model, at five times its actual size.  As with most models made for litigation, it had to be durable enough to withstand rigorous handling.  Additionally,  the top piece had to attach and detach cleanly and simply, without fussing about how things lined up or stayed in place.  We embedded magnets towards this goal and it worked like a charm.