I recently released two simple WordPress plugins:
This creates a simple pet adoption search form in a widget on your WordPress site. Once you enter a postal/zip code, you're taken to results on Adopt-a-Pet.com where you can look for a homeless dog, cat or other animal waiting for your love. (Yes, I've worked a lot in the past with Adopt-a-Pet.com, but this plugin is not affiliated with or endorsed by them, I just created it for fun and to promote pet adoption.) Pull requests welcome.
This creates a simple widget display of the current U.S. national debt, based on the latest data available from the U.S. Treasury. If you want you can animate the number so that it is increasing/decreasing on the page according to recent changes in the actual debt. Pull requests welcome.