I couldn't find where in the ExtUtils::ModuleMaker docs it mentions creating multiple modules, but in Module::Starter it shows it:
module-starter --module=Foo::Bar,Foo::Bat \
--author="Andy Lester" --email@example.com
Maybe I completely missed it?
Oh, and I like the look of Module::Starter::PBP:
Module::Starter::PBP - Create a module as recommended in "Perl Best Practices"
Walking the road to enlightenment... I found a penguin and a camel on the way.....
Fancy a firstname.lastname@example.org? Just ask!!!