Man, I've had almost everything listed in this thread. Except like, the licensed garbage.
New York Seltzer was lightweight terrible, but it didn't stop me from trying every variety of it. =_=
I miss Pac Man cereal. Imagine Kix with marshmallows. I miss 7up Gold. Cinnamon 7up, not hot cinnamon, but sweet. Fit well with root beer and cream soda. I miss the old twinkies, that were like angel food cake. Now they're chunky and oily. >_<