>>996725After cutting off 2-1/2" (6.5cm) of stem and spending about 30 minutes of rough shaping, tapering the bit to match the and cutting off all the flashing and mold marks with my pocketknife, it was time to do some wet sanding. The vulcanite is really easy to work and shape with just a knife. Didn't take a pic of this intermediate step, sorry.
After another hour of careful attention and going slow (it's hard to go fast when wet sanding with 1200 grit), it looks pretty good if I do say so myself.