Thanks Pappy,
Yeah, I left the bark. With plum (at least purple leaf plum) if the stave is from a small diameter branch (less than 3 or 4 inches), the bark is usually safe. Especially if you scrape down past the outer 'crust' (still technically not too the inner bark, but past the really coarse stuff).
If you sand the bark down smooth with 60 grit then 80 than 150 than 240 and finally hit it with some steel wool, it makes a super rich reddish beautiful color. I didn't go all the way on this one, but it still came out ok. Also a Sap Sucker had been pecking at the upper limb (while it was still on the tree) and made a nice row of holes that I decided to leave for "effect."
Gabe