I need to make a Christmas theme Cake, and was wondering how to make a Poinsettia Cake. Any ideas?

I am not sure, but I would also like to know... so here is a bump.

If you click on articles it tells you how to make a buttercream pointsettia.
I found this beautiful pointsettia cake I want to make this year right here at cc. http://cakecentral.com/modules.php?name=coppermine&file=displayimage&meta=favpics&cat=0&pos=-1115