For people who love writing journals.
A shop that offers only quality (but not only expensive) notebooks, pens and books and essays about writing.
You are looking for a fountain pen that writes with a certain thinness or thickness.
A website publishing reviews on fountain pens based on their writing thickness.
You have a surface that has a color and texture, and sooner or later you get a scratch, nick, etc. in it.
A pen that can scan a small area of the surface you have the blemish in, so it can get the color and texture, and then “prints” the same color and texture in the blemished area, making the blemish disappear.