SGM
All the woods I use in pen turning are reclaimed, in this case it came from a stump I dug up to clear part of our land. I cut it up and saved the best parts for turning but it was a bit too far gone. The question about cotton wood from another post is what inspired me to turn it anyway.
Toyotaman and SDB777
I crush my own stones, the precrushed are a bit too uniform in size. I fill the hard spots first then start filling from the center outward with the biggest piece I can, couple of drops of CA to hold it n place then fill with progressively smaller chunks ending with powder. Seal with more CA sand to match the contour of the pen and it's done. Dark woods show any powder that isn't in the void strongly! Often a bit of extra attention to the margins is needed. IN this case the powder got embedded to deeply to remove completely without sanding through the blank.
Seems my customers agree with you guys on these, I posted them about 8pm and they sold before I went to bed last night.