Mysterious objects that occasionally find their way to the flocks' hands by equally mysterious means after a particularly successful rite. They appear to be indestructible, or at least very hardy, with a durability exceeding diamond. Stick two together, and they will cling to each other and form a larger piece.

If you have any theories for how these come to be and what they do, please speculate here.

Collect and combine five, and a friendly familiar of the Moons herself shall descend, and bless your flock with a new power of the flock's choosing.