Accoutrements seem to be among the last thing people think they need to improve, but trust us, everybody sees those big while nylon stitches on your cartridge box.  For about as inexpensive as it gets you can get an excellent copy of of a particularly ugly Confederate cartridge box made by Merrick's Custom Leather.  This box will come complete with tins and a copy of the cotton webbing sling that is still attached to the original.