Which album cover design innovation did The Rolling Stones pioneer with their 1971 album 'Sticky Fingers' that revolutionized physical music packaging?

The visual presentation of music has always been crucial to artists' success. Album cover art has evolved dramatically over the decades, with some designs becoming as iconic as the music itself. This poll tests your knowledge about a groundbreaking innovation in album cover design that revolutionized how music was visually presented and marketed to consumers. Can you identify the correct packaging innovation that changed the music retail landscape?

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A real working zipper on the front cover that could be opened to reveal underwear printed on the inner sleeve
The first holographic album cover that changed images when viewed from different angles
A cover made of sandpaper designed to damage other albums when stored in a collection
The first scented album cover with embedded microcapsules releasing the smell of brown sugar when scratched