The duck hood ornament is taken from the 1978 Sam Peckinpah trucker film Convoy. The character “Rubber Duck” (Kris Kristofferson) has it on his truck hood. So in Death Proof its supposed to sort of signify an unstoppable force. Also Stuntman Mike is basically the human equivalent of the duck ornament at the beginning of the film, he has the duckbill pompadour style hair, smokes the cigarette, and wears the silver jacket.
