Here's a few samples of silly voices I randomly came up with:

Normal: https://voca.ro/1hQ2QXNktVLz

Annoying Baby: https://voca.ro/1eLfJrwcnEox

Nasal Nerd: https://voca.ro/1hRckuadMfy2

Evil Wizard: https://voca.ro/13cqTpQjiVKj

Mafia Boss: https://voca.ro/1TCckSk0cTjc

Frog Man: https://voca.ro/1asm1bJaNPrC

Senile Grandpa: https://voca.ro/1fUyjkTOUM6V

Grizzly Weirdo: https://voca.ro/18dg4Ct1olnh