A not that useful package, but a useful example of how to make a package.
Downloaded the package fromon sourceforge.
Followed the installation instructions in README.txt, but found some idiosyncracies which I haven't quite resolved, installation via adding an external method in the ZMI root didn't appear to work (install location being equivalent to
C:\Program Files\Plone 2\Zope\lib\python\Products\PlonePopoll). Ends up being installable via the Plone Setup interface.