M&M's originally came in cardboard tubes. This added durability made them easy to pour and easy to ship. It wasn't until 1948 that the dark brown bags became the norm that we see today.
When Halloween rolls around, the packaging gets another upgrade in the form of M&M's Glow in the Dark! The candy-coated milk chocolate inside is the same classic treat that melts in your mouth and not in your hand, while the packaging glows in the dark.
Find these and more glow in the dark candy bars at BlairCandy.com!