Well, we’ve seen worse fluff than this behind a 99’s faceplate, but we’ve never before found a press stud in there when we started cleaning one out.
I think they’re called poppers or snap fasteners in other parts of the world, but whatever they’re called, I doubt they’re often found inside sewing machines. The arrow’s pointing at half of this one, by the way. The other half was deeper inside, behind the needle bar.
That has got to be a bored child, hasn’t it?