Italian designer Do menico Vacca is making it easy for his celebrity clients to lend their names to fashion. Vacca has named styles from his DV Denim collection after Fabolous (the “Loso”), basketballer Scottie Pippen (the “Pippen”), Jeremy Piven (the “Piven”), Will Ferrell (the “Ferrell”) and Forest Whitaker (the “Forest”). Vacca launched the denim line at a private event last week at his Madison Avenue store.