

Your client's budget may greatly affect what you can do, but my first thoughts would be that the top tier would be a carved top hat. Maybe cover the cake board with chocolate ganache to represent the river of chocolate? Uless they have specified a color scheme, I would stick with purples / lavenders.
I know that's not a complete design, but I hope that gets your creative juices flowing!

If you will remember they had that room where everything was candy...even the flowers. I think the above poster had a nice idea, you could almost recreate that scene on the cake with the chocolate, flowers, etc.


http://www.flickr.com/photos/scrumptiousbuns/5101759483/in/[email protected]/
i found this on flickr a while ago and it may give you some ideas. its NOT my cake but its in my favourites to give me inspiration when i am running out of ideas. hope it helps you a little


With the last name of Wonka, this intrigues me!
I've had this bookmarked for quite some time. It's a tutorial for a C & CF topsy-turvy cake here on CC:
http://cakecentral.com/articles/6/how-to-make-a-topsy-turvy-whimsical-cake
For a girl, I'd probably tone down the colors, though.
I think the previous 2 posts were on a great track: making "candy": candy canes, swizzle sticks, etc. & then bending them into flower shapes. The flower aspect will go along with the girl-to-woman theme but still along the candy lines.
This isn't my cake but I like how it's more subtle than some:
http://www.flickr.com/photos/lillipies/3514550903/
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