Which scientific retail innovation was first introduced as a 'failed' laboratory experiment at 3M before becoming one of the most successful office products in history?

The intersection of scientific advancement and retail has transformed how research products reach consumers. From laboratory discoveries to commercial applications, scientific retail innovation has created entirely new market categories and shopping experiences. Test your knowledge about how scientific breakthroughs have been transformed into revolutionary retail successes that changed both industries and consumer behavior.

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Post-it Notes (originally a weak adhesive that Spencer Silver couldn't find a use for until Arthur Fry's choir book markers)
Teflon (originally a slippery byproduct discovered by Roy Plunkett at DuPont before becoming cookware coating)
Super Glue (originally a rejected military adhesive before Eastman Kodak commercialized it for consumers)
Graphene tape (originally carbon residue that failed as electronic components before becoming ultra-strong adhesive)