As soon as we shop round our homes, sheds and garages we view an array of household things that using one click of a button or twist of a knob will soon spring into life, and - most of times - perform just what we need them to. But do these items work? To find out, James May (fuelled by endless cups of java ) heads in to his workshop with tens of thousands of pieces to build some of their most cherished and recognisable objects from scratch to observe exactly what it actually takes to make them work.