I don't know if it is the one you are talking about but cupcakeology has beautiful swirls on her cupcakes and, like Rachie 204 said, she used the Ateco French tip 869.
i found it on ultimate baker site they seem reasonable in their prices thanks all i've used 1m and like it but the cupcake i saw had such clean lines, and the star on top wasn't put on last they just swirled it on the top wish i could find the picture thanks all
it wasn't this picture by cupcakeology?
http://www.cakecentral.com/modules.php?name=gallery&file=displayimage&pid=1650462
The largest round tip we use for cupcakes is an Ateco 809. I swear I'm going to finish taking close ups of cupcakes decorated with each one of the large Ateco tips!
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