Playing with the finishes on some bigger oak hollow forms. One on the left is just the vinegar/rusty steel wool treatment, one on the right is the same base, but with red acrylic paint rubbed into the pores. Better pictures should follow when the playing is finished.
I really wasn't after a true black color, I'm very happy with the tone that I got.
HUGE growth rings. Those are 8" diameter. Some growth rings are 1/2" or slightly more. This started out as a heritage bowl job, but I just kept turning the stock after I was done with the bowls. Here is a picture of the log section it came from. The customer that dropped it off was the person that hand planted a 6' tall tree 55 years ago. Here's what he dropped off.
I've done ebonizing and fuming quite a bit -- always one or the other, not in combination. I much prefer fuming. Despite all of the instructions to the contrary -- you do not need concentrated ammonia. I use household ammonia bought at the grocery store.