How do I bathroom / kitchen / extension? etc.

I didn't take one before we sold! Really wish I had. Pull cord switch thing mounted to the outside of our light tunnel, screw on eyelet thing on a joist to get the cord in position over the room, hole through the ceiling with tiny tube glued in place in the hole, shiny washer over opening end for extra pretty. Although thinking about it maybe we didn't go with a washer as the tube was thick enough to be a gentle feature. Does that explain it? Otherwise I'll do a (dire) drawing. It was a relatively simple fix to get a really clean result, thought it was a good bodge.