If I'm not mistaken, this is a reference to a Japanese custom, where on a certain day of the year, you're supposed to eat a special Futomaki (Large, multiple filling sushi roll) while facing in a certain compass direction (which changes every year) in one piece (That is, not sliced up). Seven different, customary fillings are used. Eating it is supposed to bring good luck for the year to come.



Of course, Pinkie Pie would try to take that to the next level. If eating one of these is good luck, then seven must be...