I moved earlier this year, and while looking through some stuff recently I stumbled onto an old treasure. When I was in graduate school a friend of mine modified a neat click type pen ad gimmick, and customized it for me. I used the pen happily for a few years after until it ran out of ink.
From then I think it kicked around in different desk drawers until I found it a few weeks ago. I was able to take an ink cartridge from a coworkers pen and fit it to the custom ride, and bring it back into daily use.