I have single toggle switch plate that is 3.5inch wide and 5inch high. I can't find a replacement for this, since everything in stores for a single toggle is typically 2.75" wide. Also I am interested in finding cast brass switch plates. Appreciate it very much if anyone could suggest a source that stocks the 3.5" wide switch plate. Can't use anything less than 3.5" wide because the cutout in the wall is bigger than it would normally be for a 2.75" wide plate..
If you have a Home Depot in your area they do carry these oversized plates. If you do not then any hardware store is capable of ordering them for you.