8♦ Eight of Diamonds in The Rock Songwriter’s Deck: 52 Ways to Write a Song
The Eight of Diamonds asks you to write a song that's a sequel to another song. Maybe it's your own song that needs a Part II, or you might feel inspired to write a response to someone else's famous song.
Remember that your new song need to stand on its own. You can't count on your audience being familiar with the song that serves as your inspiration.
If I remember my "American Top 40" anecdotes correctly, David Bowie's "Space Oddity" inspired him to write a sequel years later, "Ashes to Ashes," and that song in turn inspired Peter Schilling to write "Major Tom.")