A1 - Roadrunner & Wile E. Coyote
A2 - Peter Pan & Wendy
A3 - Laurel & Hardy
A4 - Sherlock Holmes & Dr. Watson
B1 - Yogi & Booboo
B2 - R2D2 & C3PO
B3 - Bush & Blair
B4 - James Bond & Bond Girl
C1 - Garfield & Odie
C2 - Chip & Dale
C3 - Darkwing Duck & Launchpad
C4 - Tweety & Sylvester
D1 - Postman Pat & Jess the Cat
D2 - Toejam & Earl
D3 - Bonnie & Clyde
D4 - Starsky & Hutch
E1 - Homer & Marge
E2 - Caesar & Cleopatra
E3 - Rocky & Bullwinkle
E4 - Dilbert & Dogbert
F1 - Kermit & Miss Piggy
F2 - Charlie Brown & Snoopy
F3 - Sailor Scout & Samurai Pizza Cat
F4 - Beavis & Butthead
G1 - Itchy & Scratchy
G2 - Bugs Bunny & Daffy Duck
G3 - Mario & Luigi
G4 - Tom & Jerry
H1 - Pacman & Ghost
H2 - Calvin & Hobbes
H3 - Jay & Silent Bob
H4 - Batman & Robin

I can't think of a worse insult than to be labeled Spongebob.