Help with this find needed

[ArDirtSlinger]

As with my previous post I'm just getting around to asking help with an ID.



I was thinking a stopper for something; but I'm not sure.
Chime in if you know what it could be

Thanks in advance

 

[Back-of-the-boat]

Is the center metal or wood rotting away?Also could you give a views looking at it from other angles.

 

[NOLA_Ken]

Looks like what's left of an old wood handled screwdriver or something along those lines