For a home party? Look to what is popular right now. With the DVD out everyone is watching Rattatoue right now, so you could have a Paris or cooking theme. America's Next Top Model is popular with tweens (sorry, but it's true) so you could have a modeling party -- there are people who will come in and teach things like how to do a model walk. Have a rock star party where everyone dresses up as their favouite rock star. Have a beading party -- choose a project and have all the girls make themselves a fabulous braclet.