The grate floor is paper. Images from the web of dials are printed on cardboard and dimensional mod podge used to raise the dials. A blue led light has been added in the box on the wall to give a glow when turned on. Pipe work is made of straws and plastic tubes, with jewellery findings as end and starts.
The door has been layered with card stock in a papertole style to give the illusion of depth. Fly wheels for trains have been added.