Fan Works
- Infinity Train: Seeker of Crocus: In one chapter, Asher is given a purple book by Rimuru and Yuri questions if its title is "Da Rules". Later in that same chapter, Parker wishes that things go back to normal, but then asks why it doesn't work cause it worked "with that kid with the pink hat".
- Mindblind: When Nathaniel was a kid, his mom used to have him watch The Fairly OddParents so he would know what the other kids were talking about.
- Big Time Rush: A subplot of "Big Time Cartoon" has Katie watching the episode "I Dream of Cosmo", and Buddha Bob (played by Daran Norris) falls off his ladder and hits his head, causing him to think he is Cosmo. Daran even uses his Cosmo voice for Bob when delusional.
- Ned's Declassified School Survival Guide: In the episode about daydreaming, Cosmo and Wanda appear in Ned's fantasy.
- MAD has a sketch parodying Fairly OddParents titled "The Fairly Odd Parental Controls", where Cosmo and Wanda advertise a remote that can hide what the kids are really watching on TV from their parents.
- In T.U.F.F. Puppy, another Nicktoon created by Butch Hartman, the Petropolis Aquarium has a giant fishbowl, which resembles Cosmo and Wanda's fishbowl, on top of it.
