Couple of things for me.
One is tiny croutons. I don’t see them anywhere anymore. They taste the same but it’s kind of a pain sometimes to keep the big ones on your fork. The small ones were a little more satisfying to snack on too.
Second is Blue Nehi. Never met anyone else that’s tried or heard of it. Damn it was good though. Big Blue is kinda similar but those always taste under carbonated.
3D TV. It was so cool. Games actually had heads up displays. Movies were especially immersive. So much potential for development. But people didn’t like wearing glasses to use it :(