Not sure. I have noticed a lot of the coral in the gallery is made with royal icing.
Maybe you could PM the people that have done the cakes you've seen. Are they in the gallery? Also, couldn't you just pipe the melted white chocolate on some wax paper and then when hardened peel and place. I did this with a picket fence once. Worked great! Just don't hold them for very long or use tweezers. Mine started to melt from the heat of my fingertips.
this thread is great http://www.cakecentral.com/cake-decorating-ftopict-31757-coral.html
I watched a gal make it once. She poured the melted chocolate into a bucket of ice, it hardened as it fell thru the ice....she let it set for a little bit, then pulled it out...knocked off the ice...and there it was, white chocolate coral....she painted it with luster dusts...it was awesome. I've always wanted to try it since I watched her do it.
Thanks coke! Will save this link for the future!
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