Dave, I'd do that for you, but after seeing your pens, I think you need more practice!:rolf:
They really are pretty easy. The recip blade I used on the first one is a great source for the blade. I used an angle grinder to get the steel and a file and bench grinder to shape and sharpen it. The ferrule I used was a bronze bushing, but you can use a copper fitting from the borg. I have some brass hydrolic hose ferrules for another project that would also work good. I'm enjoying making my own tools!
Anybody else out there making your own tools?