How do you know they don't make the clothes? Conkeldurr makes concrete, it's not a stretch to imagine that Hitmonchan can sew like a mother ****er.
I can't imagine how difficult it must be for him to hold the needle, though.
I didn't know that, that's cool. However, for Pokemon like Sylveon whose bows and ribbons are colored the same as it's fur, I have some issues. And there's also something about Scraggy's/Scrafty's pants being shedding, right? Gross.