Since M&Mís were introduced in 1941, many varieties have appeared over the years. The chocolate candy shell, each of which has the letter "m" printed in lower case on one side, surrounds a filling which varies depending on the variety of M&M's. The first variety was Peanut M&Mís, which were introduced in 1954. Meanwhile, the tagline ďMelts in your mouth, not in your handĒ was debuted. Other varieties of M&Mís chocolate were soon to follow, such as holiday editions, M&Mís Minis, Crispy M&Mís, and Mint Dark Chocolate M&Mís. M&Mís come in a great selection of flavors and colors, so youíll never get bored with these classic chocolates!