Converting names help?

I'm writing a short story about the kids (5 yr olds) in my neighborhood and how they have a type of hierarchy similar to high school by throwing their personalities into a high school setting. There are literally 5 five-year-olds living in four houses right in a row. Their names: Jace John Mark Cayden Hunter Levi I wanted to change their names. So far I only have Chase as Jace. Any suggestions?