These are mostly ready to run. The only thing you need to change is the rss_file line, to indicate where the feed should be saved.
Generates RSS feed to Open Culture’s posts in the “Creativity” category.
Generates RSS feed to Penny Arcade’s main comic, including the image.
Generates RSS feed for Smashing Newsletter posts.
Generates the RSS feed used in Ty Halley’s That’s Inhuman comic.
The Unlicense (Public Domain, essentially)