Which innovative sensory packaging feature was first popularized by major music artists' vinyl album releases in 2018-2019, creating a viral unboxing trend?

Product packaging has evolved beyond mere protection - it's now a crucial part of the brand experience, especially in pop culture merchandise. Modern packaging engages multiple senses and creates memorable unboxing moments that fans share on social media. From textured surfaces to sound chips, scented materials to color-changing elements, sensory packaging has become a marketing strategy in itself. Test your knowledge about this fascinating trend transforming how pop culture products connect with consumers!

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Thermochromic ink that changes color when touched
Embedded audio chips that play artist messages when opened
Scratch-and-sniff surfaces that release custom artist fragrances
Augmented reality markers that animate album artwork