This is an area where (I think) it can't hurt to make it free. Simply chuck a license header at the start of each file, put a readme which states "this has been

This is an area where (I think) it can't hurt to make it free. Simply chuck a license header at the start of each file, put a readme which states "this has been abandoned, but I'll happily link to anyone who wants to make it alive again" and put the whole lot up somewhere (e.g. github). My suggestion (because it's abandoned) is to use a permissive license.