Caillou moves to Townsville.

Caillou goes to Equestria.

Caillou has a playdate with Millie and Gilbert has a playdate with Mister Kat.

Caillou has a playdate with Bessie.

Caillou goes to Bikini Bottom.

Caillou moves in next door to Zim The Alien.

Caillou goes to Veggie Land.

Caillou has a playdate with Todd.

Caillou has a playdate with Pibby.

Caillou goes to Teletubby Land.

Caillou has a playdate with Elmo.

Caillou has a playdate with Pingu.

Caillou has a playdate with Peppa.

Caillou has a playdate with Oobi.

Caillou has a playdate with Franklin.

Caillou has a playdate with Max and Emmy and they take him to Dragon Land.

Caillou has a playdate with Dora.

Caillou has a playdate with George.

Caillou has a playdate with Brother Bear.

Caillou has a playdate with Barney.

Caillou has a playdate with DW and Rosie has a playdate with Kate.

When Caillou learns that he has to attend the B.A.D. 4 concert as part of Family Fun Night at the Central Convention Center, he starts playing loud Rock and Roll Music after pushing Schwarzwälder into a crowd of concert ongoers. Rated K plus for it being Caillou Gets Grounded, but there is some humor throughout the story. Originally posted on my AO3 page.

Miley has a playdate with Caillou.

Caillou x Dora the Explorer x Cyberpunk: Edgerunners story. When Caillou meets up with Dora at school after he asks to use the bathroom, the two troublemakers steal Caillou's teacher's car and drive it through Night City from the Cyberpunk series just to cause a rampage. Rated T for the violence, language, and the obvious grounding sequence. Also on my Archive of Our Own page.

Caillou and Wii Sports Crossover. When Caillou was disappointed that he was to attend the Wii Sports Baseball Game, he decides to ruin the fun for other patrons and the people playing the game by playing loud rock and roll music from the announcer's booth at three hundred percent volume. Rated K plus just for minimal amounts of language and the grounding sequence.