Given a maven project with a parent POM - including mostly plugin and dependency versions - how can I generate a POM which takes the information from the parent, places it into the child and removes the reference to the parent?

Ideally this would be done with the maven-assembly-plugin.

Update: I need this done automatically, since manually it's boring and tedious.

Update 2: I'm preparing the source code for an external and want to deliver only one project, not the whole family.