Faygo soda pop. I know its still out there, but hard to find. What's odd is the location you DO find it at...like who would have that the BP gas station I stopped at in Huntsville, AL would have a soda pop from Detroit? Its good AND cheap!
McDonald's had an awesome grilled chicken sandwich when I worked there in the mid 90s. It had red sliced onions and a creamy spicy sauce. It was so good. Same with their ham and cheese bagel snadwich, had a really unique flavored sauce...they still have the bagel sandwiches, just not that one anymore.