Juan Treminio has written up a post about a new tool he's created that makes generating Vagrant/Puppet configs easy - PuPHPet.

I just released the initial version of PuPHPet, my GUI-based gnerator for Vagrant/Puppet environments! [...] Enter PuPHPet, my GUI configurator. I have created a simple, easy to use web app that targets PHP developers and the classic LAMP stack. You will not need to learn the ins and outs of Vagrant or Puppet to build your own working VM to your specific needs. As of now you can define things like custom virtual hosts, what version of PHP to install, set up some MySQL databases, etc, all without having to touch a manifest file.

His tool (hosted version is here) lets you define things like machine name, IP address, memory and target folder. You can pick from various server, PHP, MySQL and Apache packages you want installed as well. A custom archive (zip) file will be created that can be dropped into your system ready for use.