They used luster dust (probably mixed with vodka) to paint the shiny parts on the cake.
I know you can get some cake stencils from www.sweetc.com, but I'm not sure if they have that particular one...I'm sure there are other places to get them, too, but I'm pretty new to this so that's the only one I know of.
For a shiny black like that, I use gel color and add a little bit of airbrush color in the same shade to make it more of a "paint" consistency.
I was wondering the same thing about that black. I was getting ready to post that same question.
I see you also were looking for lace stencils macksnax has a cake in the bridal shower gallery. where she uses lace for drawer liners. It really turned out nicely. You could probably pm her. It looks a lot like what was on the cake competion last night. She has a good explaination under the picture.
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