Sorcha, you're missing nearly the same ones as I am, I'm sure you can get 15 and 19 though. 15: Ignore "Cindy" (It may be a UK thing and doesn't make sense to other folks) and think "Barbie."

As for 19, I'm not sure how to hint without giving it away, and it's Nigel's job anyway I'm still sure you CAN get it.

Oh jeez - I think I may have just figured out #16. Sometimes all it takes is getting half of the answer, and the rest fills itself in.