You could use some of wife's ancestor's surnames...Montemayor, del Canto, de la Cerda, Cantu, Garcia, Trevino, Guerra, Sepulveda, de la Garza, Ayala, Saldana, Aguirre, Alejandro, Villalobos, de la Escalera, Ruiz de Esparza, Navarro, Valderrama, Moctezuma (yes, THAT Moctezuma!)