Funnyman Peter Francis Dante partied with friends at Ghostbar at the Palms on Sunday night. The “Grandma’s Boy” star was joined by six friends at a table overlooking the Las Vegas skyline. The group drank Grey Goose vodka and beer. Dante kept is casual, arriving in a gray T-shirt and blue jeans. Before the group left around 2 a.m., Dante singed Ghostbar’s shakedown wall, which is covered with actors, athletes, politicians and many more autographs in the back kitchen.