1980s - S&V (hard and tangy)
1990s - C&O (warmer & smellier)
2000s - Prawn Cocktail (don't have a reason for this just gut instinct)
2010s - Ready Salted (austerity)

Please feel free to either critique the above, do some other decades, do other food stuffs (or anything) for the decades or anything else you like. I will be posting in here again so it's not going to be zero replies.