Themed Birthday Party: "Alice in Wonderland " - preparation

For my children's birthdays I have always come up with a specific theme for their parties.  Cowboys, Indians, Princesses, Fairies, Pirates,... They have always been a LOT of fun, but also a lot of work. Timely preparation is therefore needed. 

In February my daughter is turning 9 and we've decided on an "Alice in Wonderland" party after watching Tim Burton's movie. I've been doing lots of research on the theme and my mind is already full of ideas.  However, turning those ideas into something tangible isn't always easy.

I would love to make her a dress, just as similar to the one Alice wears in the movie (so not the blue dress with the white apron as in the cartoon, though, an apron would be convenient... hmm, must think further about that).

I plan to use an easy pattern and I would love to find a light blue fabric that is slightly irredescent. There's a huge fabric sale in November that I would love to go to. (edit: just went through my fabric stash and came across 2 metres of blue satin, so I'll probably use what I have).

The rest of the family also dresses up for these parties (which means I've been a pirate bride, Pocahontas, a Queen, etc). I'm thinking Queen of Hearts for myself and there can't be a Wonderland party without a Mad Hatter of course (uhm, sweetheart...?)

And then of course there is also the invitation to think about, decorations, food, games... ooh, mustn't be late!!