Dick Cheney's head

Dick Cheney was the vice-president under, and by the 31st century as a head in a jar had become the vice-president to Richard Nixon, whom he ordered to steal a Pine Tree during Xmas of 3010 (6ACV13). He seems to have replaced the Headless body of Agnew as the Vice-President of Earth, after Agnew was killed by the Feministas (ITWGY). However, the non-canon nature of "The Futurama Holiday Spectacular" makes this replacement uncertain.

Trivia
The day the episode aired, Cheney also made an appearance in The Simpsons episode, "The Fool Monty".