E17 is legit (not sure about the others). I used to make staffs out of sticks when I was a kid, and that's what they looked like -- with bark carved off at a couple spots. I used to do that to give myself spots to hold the stick -- so you can hit things with the stick without giving yourself splinters.
For that type of wood, you can easily remove the bark by just cutting two circles around the stick, then peeling off the bark in between the circles.
E17 is also the stick originally that held the clothes down, is it not? It was collected originally rather than later.
Weren't there also reports of someone dressed in black with long black hair walking around in the area with a "staff" in the past?
EDIT: Here's what Jessie had to say, which seems to corroborate E17:
DAVIS: Who hit'm with a stick?
MISSKELLEY: Damien, I hit, I hit one of'm with a stick and
DAVIS: Now. When you say that, do you remember what kind of stick Damien had,
you saw those sticks we had in Court.MISSKELLEY:
No, I didn't look at them.
I know there's a stick carved something into it or something. You know part of the bark off of it.DAVIS: Do you know how long it was? Was it as long as a baseball bat or longer or?
MISSKELLEY: it was
longer than a baseball bat.DAVIS: Ok. Describe for me what it looked like as far as, you say it looked like someone carved on it?
MISSKELLEY: Like
a piece of the bark off of it.
DAVIS: Was that at the end or middle or bottom or do you remember.
MISSKELLEY: I can't remember.
http://callahan.8k.com/wm3/jmfeb.html