Many big town have places devoted to lighting fixture parts. The electrical contractor supply houses don't stock the same things but they know where to go to get them. Usually they will just send you on to the right place. For what it's worth, it probably is right across the street from the really great upholstery supply hose in the neighborhood where there are usually a lot of murders and other drive-by shootings. Leslie, you might want to search out this place. You really might consider having them do the work also, or at least inspect your work, because sticking bare wires in wall sockets is a good way to get shocked and, possibly, killed.