This Daffy Duck spoof of Buck Rogers in the Twenty-fifth Century is fairly funny, especially once he has met up with Marvin the Martian.
"Duck Dodgers" has been given the task of finding Planet X, the only remaining source of Illudium Phosdex (the shaving cream atom). He sets off with his side kick, eager young space cadet Porky Pig, and eventually finds the planet which he claims for Earth, a few seconds later Marvin arrives claiming it for Mars and the two of them have a stand-off involving Acme Disintegration Guns, Ultimatum Guns and finally they each attack the other with explosives that leave little of the planet intact.
I found this to be pretty funny, Daffy usually amuses me more than Bugs Bunny due to his general incompetence and Marvin the Martian is always funny.