Hey Moira,
We are planning a girls night in aswell, and through our brainstorming have thought of a couple more ideas.
1) Would I lie to you? ~ The game show, in a similar form. The women must each bring an item with an interesting back-story, and try to convince the others that it is a true story. 'Fake' objects will also be placed in, with made-up back-stories, with the women having to convince them in a similar way. If they fool the other ladies, they get a point.
2) Guess the tune. ~ Off the TV show 'Spicks and Specks', get women's health brochures, and a lady must stand up and attempt to sing a tune to the words from a brochure. Such tunes as 'Girls just wanna have fun', 'barbie girl', etc could be used.
Hope this helps someone!