Which accidental packaging innovation was originally created in 1957 when engineer Al Fielding and Swiss inventor Marc Chavannes were attempting to create textured wallpaper?

Many revolutionary product packaging designs we take for granted today were actually the result of accidental discoveries or unexpected innovations. These packaging breakthroughs not only solved practical problems but often transformed entire industries. This trivia question explores one such packaging innovation that had far-reaching effects beyond its original purpose.

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

Bubble Wrap
Spray Can
Child-proof Cap
Resealable Zipper Bag