Older case, but news to me: cupcake bakery asserted trade dress infringement of its blue-frosted cupcake, "Breakfast at Tiffany's."
Just sayin', I might not assert trademark rights in a combo of the name Tiffany's, blue, and "gems." But the parties settled, so there you go. Mini’s Cupcakes, Inc.
v. LuAnn’s Cupcakes, Inc., No. 2:10-cv-57 (D. Utah May 15, 2010).