Which iconic sticky product was created in 1968 when scientist Spencer Silver attempted to develop a super-strong adhesive for 3M but instead created a 'low-tack' reusable adhesive that initially seemed useless?

Many groundbreaking products we use daily were discovered by accident rather than intentional design. These 'happy accidents' often represent turning points in consumer product history, where a failed experiment or mistake led to something revolutionary. This poll tests your knowledge of one such serendipitous discovery that transformed from laboratory disappointment to household essential.

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Post-it Notes
Scotch Tape
Super Glue
Velcro