[chef] Leveraging node data for one-off commands

[Kenneth Stailey < >]

All,

What's the best way to leverage chef data bags to launch something that does 
a one-off command on select nodes?

Thanks,
Ken

P.S.

-- from this point on are clues about what that question is asking --

In the past there were articles about using searches on Puppet stored configs 
to create lists of hosts that were fed into Capistrano.
http://www.robinbowes.com/article.php/2009100402131050

I'm not "married" to using Capistrano so my question is asked in a more 
generic way at the top of this message.

The idea of writing a recipe that would be used once seems to me to be a bit 
heavyweight.