Which of these laboratory products was originally marketed as a cooking supply but became a scientific staple after researchers discovered its unexpected laboratory applications?

Scientific research often relies on specialized equipment and supplies marketed to laboratories. In the history of science retail, some products have transformed laboratory work through innovative marketing or unique customer engagement strategies. This poll tests your knowledge about a famous scientific product that became ubiquitous through an unexpected marketing pivot and customer feedback loop that forever changed how scientists approach their work.

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Post-it Notes (originally a failed adhesive that a 3M scientist repurposed for marking hymn books)
Parafilm (initially marketed as a kitchen wrap before being adopted for laboratory sealing applications)
Kimwipes (first sold as cosmetic tissues before scientists discovered their lint-free properties)
Lab tape (developed as electrical tape before being reformulated for laboratory conditions)