User blog comment:Drakan95/Ötzi vs Fred Flintstone. Epic Rap Battles: Cartoons vs History. Season 1 Premiere/@comment-25144949-20150510130411

Ghostbusters vs Mystery Inc. (ghost-busting groups)

Zeus vs Homer Simpson (fathers with a troubled family life, or something like that)

Finn & Jake vs Lewis & Clark (adventuring duos)

Buzz Lightyear vs Neil Armstrong (famous astronauts)

People who I want used but I can't think of an opponent:

Powerpuff Girls, Tom & Jerry, SpongeBob, Peter Griffin/Griffin family, Eric Cartman, Regular Show,