Lipshtick at the Venetian has done solid work of its own on the comedy-showcase front, and the one thing it has going for it that Aces of Comedy doesn’t is its willingness to bring in acts that are great, but not-yet mainstream. Enter Garfunkel and Oates (Nov. 7), the musical-comedy duo of Riki Lindhome and Kate Micucci. They’re guitar- and ukulele-wielding quiet assassins, whose cheerful, twee delivery hides the absolute daggers they plunge in song. Case in point: “The Loophole,” a ballad of protecting one’s virginity by use of, um, the back door. Technically, it’s not forbidden. Venetian.com, Facebook.com/Lipshtick.