If you are doing sardines, it's gotta be King Oscar sardines, red package, packed in olive oil, on real saltines with all the fat and salt.
My first heavy-weather ride as a Coasty on a small boat, they tried to mess with me and another kid by eating sardines. He puked on the coxswain, then the other 3 crew saw that and puked. I asked if they had another can of sardines. I was hungry.
Aaaaaamen! I love those things. Used to stock up on them whenever they were on sale. Something comforting about having a nice stack of sardine cans in the cabinet. ;-)