Step 1: Materials
Rockler Pen Kit (www.rockler.com)
30-30 Shell Casing
5/16 inch brass tubing (from craft/hardware store)
Step 2: Pen Tip
When the end is cut off, heat the bullet up and the lead will easily drain out.
Step 3: Assemble the Lower End
With the lower half of the pen connected, now it is time to work on the top.
Step 4: Pen Top/Pocket Clip
I brazed this on, but you could also use solder or silver solder and it will be fairly solid.
I had to clean this on a wire wheel and then shine it on the buffer.
Step 5: Assemble
The two brass tubes that come with the kit provide a friction fit so that the pen will extend. To get it all together, I superglued the brass tubes into the open ends of the halves.
Once this has set, then you can press fit the mechanism into the lower half. Adjust it so that the pen tip extends out the end when turned.
Now just slide the top half onto the pen, and you are done.