Crockett...I drilled my blocks using a steel spacing template and brad point drill, glued a thin strip of wood on, to cover the holes, and then ripped a strip about 3/8" thick off the block, which included the glued-on covering strip, to form the lid. The lid is hinged with a strip of muslin glued on like a piano hinge. I did my lettering for the labels with suitable fonts on my computer and printed the labels out in sheets. The labels get glued onto card-stock sleeves that work like a matchbox. They're brushed with amber shellac. I only made boxes for a couple hundred cartridges since i wasn't too sure what the shelf life of the flash paper was like, and didn't want to make too many cartridges ahead of time.