To cut to the chase, antique store find, decent pipe but the previous owner thought that reaming a pipe was a porn move. After I cleaned it up and removed the 1/2" of cake, I see that I need to add some pipe mud to one spot that is fissured pretty bad and the result is a dark spot on the outer bowl. What is the best way to cover this unsightly mark so I don't have to look at it. The current stain is a light brown so I thought maybe switching it to a dark stain may work or I could try my hand at rusticating the area but don't want to weaken it any further.

Looking for some ideas.