What was the original failed product research that eventually led to the invention of Post-it Notes?

Product innovation often comes from unexpected places! Some of the world's most successful consumer products were created through accidents, persistence, or a combination of both. This poll explores the fascinating origin story of one of 3M's most iconic innovations that revolutionized office communication and organization. Test your knowledge about how this simple yet revolutionary sticky note came to be!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

A super-strong adhesive that wouldn't come off
A waterproof paper for underwater writing
A heat-resistant coating for spacecraft re-entry
A colorful dye that wouldn't fade in sunlight