Arrowhead Water
Arrowhead is the one brand of bottled water than never really seemed to catch on. We have to assume that it was because Arrowhead was late to the game, compared to the Poland Springs of the world. But, like in all cases, people will eventually pick it up when there is absolutely nothing left.
Pineapple Pizza
Evidently, the fight for the inclusion of pineapple on pizza even includes a global food shortage. If you are one of those weird folks that like the forbidden topping (no judgment here), there are plenty of frozen pies left to go around. Just make sure you go grocery shopping at weird times so people don't see you buying it.