It may be an overly daunting task but you could use the records from
here (Electronic Army Serial Number Merged File, ca. 1938 - 1946 Enlistment Records: World War II Army Enlistment Records) to come up with a realistic era-appropriate name set.
Here are the first 1000 records with "RACE AND CITIZENSHIP = 2, K":
1000
By changing what follows after "&rpp" you could increase the records per page to the amount ypu would like. Adding "&pg=#" (where # is a number) to the end will let you go to the different pages.
Michael Eng