Ooh ooh! I have an entry!
Almost exactly 2-years ago, in July 2010, I stayed overnight at Peter Heeschen's house in Denmark, and I made my own pipe in his workshop. We didn't have time to stain the pipes as they would need to dry overnight and then be buffed. In the morning we had to leave early to go see Mac Baren.
So this pipe's finish is just the natural wood polished on buffing wheels. Nothing has been added to the wood, not even a polishing wax.
Before Photo Taken in Denmark right after I finished the pipe
After Photo Taken Just Now for this Thread
I have no idea how many bowls I've smoked in it over two years, but my best guess is 20 - 25.
The old thread telling the story of the making of the pipe is here:
http://pipesmagazine.com/forums/topic/made-my-own-pipe-in-denmark