There's also a lot of fun to be had with military ranks and last names.

Captain Crunch
Major Nonno (Met one)
Private Parts
Seaman Drinkwater
Petty Officer Party (they called him Petty Party)
Lots more...

Danny: I see you in a uniform, flying. Have you ever considered a career in the Air Force?
Clark: Um...I'll think about it.
- From Smallville, episode Crush