After looking over ther periodic table and finding that all of the Niger-based halogen domains were free (with the exception of iodi.ne). I wondered how many more domain hacks exist, and how many are still available.
So, as a programmer, I quickly whipped up a script in C++ (probably could have used a scripting language to write it faster, but oddly enough, I don't Perl installed on my machine) to do it for me (albeit probably quite inefficiently). Basically the script reads through a dictionary and compares the last few characters to all of the top level domains in existence and prints them out to a file.
Next steps include removing case-sensitivity from the comparisons (thankfully Notepad++ has automatic case-conversion), hooking the script up to an API to check the availability and pricing of those domains (Niger domains cost a couple hundred to register, surprisingly enough), and modifying the domain list to filter out difficult-to-register domains (such as presence requirements, or the requirements of secondary domains (such as Thailand), include secondary domains, and enforce the minimum character limit present on some domains.
Edit (2014-07-12): At the behest of a "friend" I ran the script instead on a list of "cool" words gathered with a nice one-liner he whipped up:
copy(.slice.call(document.querySelectorAll("div.article p > b"))
(The compiled wordlist can be found here.)
The output of the cooler domain hacks can be found here.
(Interestingly enough, the website zeitgei.st redirects to a website that specializes in making domain hacks. Huh.)
05-08-2015: I accidentally overwrote this post when writing Eminent Domain. I should probably have checks (or at the very least backups) to ensure this doesn't happen again.