Suggestions by @thecrimsonpaw

Bubbles (The Powerpuff Girls)

as Powerpuff Girls in Mount Rushmores

Blossom (The Powerpuff Girls)

as Powerpuff Girls in Mount Rushmores

Metal Sonic

as Memes in Mount Rushmores

Chewbacca

as Second Bananas in Mount Rushmores

Gunther Magnuson

as Second Bananas in Mount Rushmores

Clank (Ratchet & Clank)

as Second Bananas in Mount Rushmores

Miles "Tails" Prower

as Second Bananas in Mount Rushmores

The Spectacular Spider-Man

as 2000's Cartoons in Mount Rushmores

Cyberchase

as 2000's Cartoons in Mount Rushmores

Samurai Jack (TV Show)

as 2000's Cartoons in Mount Rushmores

Avatar: The Last Airbender

as 2000's Cartoons in Mount Rushmores

Magneto (Max Eisenhardt/Erik Lehnsherr)

as Marvel Villains in Mount Rushmores

Thanos (Marvel)

as Marvel Villains in Mount Rushmores

Loki Laufeyson

as Marvel Villains in Mount Rushmores

Green Goblin (Norman Osborn)

as Marvel Villains in Mount Rushmores

50 Cent

as Rappers in Mount Rushmores

Jay-Z

as Rappers in Mount Rushmores

Kendrick Lamar

as Rappers in Mount Rushmores

Snoop Dogg

as Rappers in Mount Rushmores

The Adventures of Jimmy Neutron, Boy Genius

as Nicktoons in Mount Rushmores