So here it is! This has got an Okin prototype inside of it, but it gives you the idea of what the production model box will look like. This box is made from padauk wood, but the production model box will be made from African Mahogany (which I think is an even nicer looking wood).
The corners are finger jointed for maximum strength. It's lined with cork on both ends to hold the stem lightly in place and dampen any rattling sounds.
The two kraft paper boxes are just folded and glued together. These boxes can be made from any thick paper, and cut to shape to give you whatever compartment sizes you want, with or without lids.
I think I'll provide an 8x10 piece of paper with different box sizes printed out on it. You can pick the configuration you like, cut the box out, fold it, and you're good to go. Having removable boxes is very handy because you can pick out a little herb box, then dump straight from the box into the Okin chamber.
The metal tip is held in place by the lid which slides over one of the bronze springs, depressing it slightly.
The box is shown here with extra fabric filter material, sewing thread, and beeswax. There is room under the stem for matches as well. And some extra room beside the metal tip for cotton (if you're using concentrates).
When the box is closed, everything is held securely, and the box can go right into your pocket. The configuration shown here holds 5 charcoals. I figured that most people will be returning home at the end of the day, where they can restock the box with charcoals.
This slipcase was finished with linseed oil and beeswax. I applied the finish unevenly to give it an aged appearance... in case anyone wonders why some parts are darker than others...
Anyhow, I'm super happy with how it turned out! It's lightweight, small, and durable.