Dueling Daughters

[Bill.Light at kp.org]

OK - Not dueling, but it made a cute subject...
I have a domain, example.com, and both daughers want a "home" page, so 
instead of:

example.com/daugtherone   -and-   example.com/daugthertwo

Can I do:  daugtherone.example.com   -and-   daugthertwo.example.com  ??

And I guess, more appropriately, once I have *.example.com.  in a zone 
file, is this strictly an Apache issue ?

Examples ??