Here are some classic candies that were introduced in the sixties. And while we're at it, here are some classic candies that were introduced in the fifties.
I never heard of some of these and never found most of the ones I did hear of particularly appealing. As I wrote here, I did like Fizzies but I wouldn't consider that a candy. I liked Pez but more for the dispenser toys than the actual candy…and the only flavor of Pez I liked was orange.
I seem to recall that when I first tried Peanut M&Ms, the peanuts had the peanut skins on them and I didn't like them because of that. Later, they made Peanut M&Ms with skinless peanuts and I liked those more — though not as much as the non-Peanut M&Ms. And come to think of it, I didn't like them as much as chocolate without the candy shells. I seem to also recall that I didn't like Hershey's Mr. Goodbar bars, which were chocolate-covered peanuts, because they had the skin also.