My wife has a leather jacket. when she wears it she often finds me running my hand over it muttering sporran, sporran, sporran.

Check the yellow pages to see if there is an upholstery shop in the area. You might find a car or furniture upholstery shop that does leather work. You may need 2-3 square feet but that does not mean it has to be one piece. One persons scrap may be another persons sporran.