What's your nostalgia?

The last year or so I find myself being more and more struck with things from growing up that are completely oblivious for current adults. I know it isn't 90s, but I mentioned Charlie the Unicorn and 4 people in their 20s had no idea what it was. I (34f) had an existential crisis reflecting on everything I could remember from childhood and realizing I have forgotten a bunch. So help me out- what are some things that feels nostalgic for you?