The Joke Colloquy software quickly converts text into an upside-down format. Ideal for pranks and amusing messages, the script is easy to use and produces immediate results.
Installation of Upside-Down is equally easy. Firstly, unzip the file. Secondly, move the file to "~/Library/Application Support/Colloquy/PlugIns/" folder. If this folder does not already exist, create it. Thirdly, if this is the first time you are installing the plugin, go to Colloquy and type "/reload plugins". Finally, if the installation is an update, or if the script fails to load, re-launch Colloquy.
Overall, Upside-Down is a simple and fun script that can add some levity to your conversations when used wisely. Give it a try; it might just be the script you didn't know you needed.