Local rockers Sybris recently released a special-edition EP in the style of a Dungeons & Dragons adventure module. The Voyage of The Stag Party includes an illustrated book complete with maps and features the band members as prerolled characters.
Soul Jazz Records' recent comp of Chicago acid and experimental house music includes a sci-fi graphic novel detailing the history of Chicago house music.
In 2011, the Flaming Lips put out Psyche Explorations of the Future Heart on a USB flash drive embedded in a gummy skull. This is seven pounds of edible gummy skull, you guys. But why stop there? They also released three songs inside a gummy fetus.
Spiritualized's special edition of Ladies and Gentlemen We Are Floating in Space included 12 minidiscs in pharmaceutical packaging.
The special edition of Thurston Moore's project Root comes in a custom-made Hoover vacuum cleaner bag.
When all else fails, let your fans design your album cover. Local drudge-rock band Pinebender's Too Good to Be True is a "Design Your Own Cover" EP, complete with a pencil in the spine of the CD case.
But nothing can top German band Rammstein's special edition (and NSFW!) packaging for their 2009 release Liebe Ist Für Alle Da.
For more cover art inspiration, check out this collection of unique CD packaging design.