The decoding symbols blog had a long article that included candy companies, and iirc, M&Ms were originally a joint collaboration between Mars and a (former?) Hershey exec whose last name also started with M. Later Mars bought out the other guy’s share and now Mars owns M&Ms outright, while Hershey competes by using Reece’s Pieces (which is another rabbit hole of Spielberg ET pedophilia)
The decoding symbolism blog had a long article that included candy companies, and iirc, M&Ms were originally a joint collaboration between Mars and a (former?) Hershey exec whose last name also started with M. Later Mars bought out the other guy’s share and now Mars owns M&Ms outright, while Hershey competes by using Reece’s Pieces (which is another rabbit hole of Spielberg ET pedophilia)