easy-rsa is a small RSA key management package based on the OpenSSL command line tool. While it is primary concerned with key management for the SSL VPN application space, it can also be used for building Web certificates. It was originally included as part of OpenVPN, but is now a separate project.
flipflip's podcast downloader is a script that downloads podcasts. Is has options to limit the number of podcasts to download, to rename the downloaded files based on rules, and to tag the MP3 files with custom content or with content derived from the feed metadata. The program is very small and has very few dependencies (id3v2 and wget).
homeTVstream is a collection of shell scripts and a PHP-based Web page for watching TV on your LAN computers. It is based on VLC, and encodes and streams video using port 8080 in an MMS stream. You can watch it with VLC by using the URL mmsh://yourserverip:8080/, with any other MMS-capable player by using the URL mms://yourserverip:8080/, or just by opening the TV page in your Web browser.