The Fairly OddParents - 5x15b - Presto Change-O

Timmy Turner wishes for a joy-buzzer that allows him to swap bodies with whoever he touches. Wanda is hesitant to grant the wish at first since Timmy wants to use it to swap bodies with A.J. and cheat on a test, but she must grant the wish anyways when Cosmo rushes her to Fairy World to help take care of Mama Cosma, who was come up with the 9-Hour Flu. Now Timmy is without his fairies for nine hours, and when he accidentally switches his body with Mr. Crocker's, he must get his body back before Crocker tricks his fairies into revealing themselves to him!