Change the vowels to the same thing makes it funny lololloollololo.
note to future meee
have 2 suggestion for your vowel changer to make the output make more sense
(this could be an option checkbox beside the [Convert] button that's called something like "fix silent e & semivowel y")
1) silent e's at the ends of 4+ character words should get removed
current: o mooso on tho hooso bokos on ooxoo coko.
with my suggestion: o moos on tho hoos boks on ox cok.
(example given: "a mouse in the house bakes an axe cake")
2) y's should be excluded when a vowel comes after it.
current: oooos, shoo ooooooth ploooo rhoothms.
with my suggestion: yoos, shoo yooth plooy rhoothms.
(example given: "yes, shy youth play rhythms")