Nina Conti might be described as a postmodern ventriloquist. She and her puppet Monk (a monkey) stole the show in For Your Consideration (there's also a long bit with the two on the DVD of the film). Below, a link to a clip of Conti's 2005 performance at Tickled Pink, an annual breast-cancer fundraiser at the Royal Albert Hall.
Note: There are a few rough spots in the language -- all from the monkey.
Nina Conti and Monkey (YouTube)