When Gabe Rotter (left) celebrated the publication of his first novel, Duck Duck Wally, with a party at G Spa, the basement lounge at the Gansevoort Hotel, even Simon & Schuster publisher David Rosenthal donned one of the gold chains that were strewn all over the room to work the book’s hip-hop theme. Among other partygoers sporting the complimentary bling: Melissa Lafsky, taking a well-deserved break from transitioning the Freakonomics blog over to the NY Times web site, and foreign rights scout Glynnis MacNicol, who did the best job of accessorizing that chain of anybody in the room, going for an imperial Roman hairstyle.