The model is Gladys the golem, who worked at the post office and was told to wear a dress to be allowed into ladies' bathroom for cleaning. Eventually she was given some books on ladies' etiquette - and golems tend to believe everything that's written, 'cos they're powered by words.
She'd probably want to look like a proper female after reading some women's magazines. So she goes to the potter known for rebaking Dorfl, and he makes a business out of it
Gladys appears in Going Postal and Making Money, Igneous mostly in Feet of Clay. They and that hilarious troll-speak all belong to Terry Pratchett ^_^