Over the course of time, from January 4, 1999 to October 2, 2003, Cartoon Network aired a series of the "Cartoon Cartoons" bumpers which featured a Cartoon Cartoon character pops out of the first "O" in "CARTOONS" and says, "Cartoon Cartoons!" on the blue swirly background with beaming circles, and rays. With over sixteen years of these behind us, some will go missing.
- A Cartoon Cartoons bumper featuring Robot Jones from "Whatever Happened to... Robot Jones?" (2002).
- A Cartoon Cartoons bumper featuring Numbuh 5 from "Codename: Kids Next Door" (early 2003). (FOUND)
- An early Cartoon Cartoons bumper with the word "Network" forming "CARTOON" (without transitions) (1997).
- January 11, 2018: The Cartoon Cartoons bumper with Numbuh 5 from Codename: KND has been found by the user Eduardo Espinoza Cid!
LINK: https://www.youtube.com/watch?v=pwZzlwNtBAA (at 3:14)