Fisher, take some steel wool and throw it in a mason jar filled with vinegar. another name for it is "vinegaroon" works great with natural tanned leathers and wood (the natural tannins are what is reacting) I have heard (emphasis!) that it won't work on crome tanned leathers though... I haven't tried it myself so I don't know if that is fact or not! another thing thats nice about it is that the vinegaroon won't discolor your hands when you work with it, unlike other leather dyes! :thumbsup:
My only comment on the bag itself, would be that I'd like to see the flap cover the whole opening, if you look on either side you see the gap? I'd worry my kit getting wet in rainy weather, but as you said it is of Southern Appalachin desirn so its still right as is, and this is just my own personal thing! :thumbsup: