"Monster's Inc" - Box office: $577.4 million
"Finding Nemo" - Box office: $940.3 million
"WALL-E" - Box office: $521.3 million
$2.4B worth of ideas, not counting two sequels and eight theme park rides/attractions.
Imagine if they'd taken the whole afternoon instead of just lunch!
(1) Heimlich's Chew Chew Train, (2) Flik's Flyers, (3) It's Tough to Be a Bug, (4) Monsters, Inc. Laugh Floor, (5) Mike & Sulley to the Rescue!, (6) Living Seas w/ Nemo & Friends, (7) Crush's Coaster...
What am I forgetting?
Also, It’s Tough To Be A Bug was cloned, so I guess you can count it twice. It’s still playing at Animal Kingdom (1998), and opened with Disney California Adventure in 2001 (closed 2019).