Which accidental scientific discovery was first marketed with the tagline 'A Mistake You'll Want to Make' before becoming essential laboratory equipment?

Many scientific breakthroughs come from unexpected observations or accidents. Sometimes these discoveries transform into commercial products through brilliant marketing strategies. This poll tests your knowledge of how a famous scientific product was initially marketed before becoming a household staple in laboratories worldwide.

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

Penicillin ('The mold that saves lives')
Post-it Notes ('A solution that didn't stick to its original problem')
X-rays ('See what lies beneath')
Teflon ('The slippery accident that changed cookware forever')