Bungie has thrown a few secrets into the mix with Destiny 2 Shadowkeep. Like the small statues that you find throughout the Moon which tell you that “You Lack Something” when trying to interact with them. The reason that you cannot interact with them is because you haven’t found the right items.
That item is the Small Rice Cake Consumable item. If you have the Small Rice Cake in your inventory when you find one of the Jade Rabbit statues you will get a reward. The reward that we’ve gotten for the Small Rice Cake is Phantasmal Fragments which can be used in the Lectern of Enchantment to craft powerful weapons and armor.
Where do you get the Small Rice Cakes?
The Small Rice Cake seems to be a random drop. Our first Rice Cake dropped from killing an enemy while exploring, though it seems probable that these items can drop from completing activities like patrols, public events or other events on the Moon.