[ Chances of Tenzin ever showing his children this trick are...fairly low, but even if she'd seen it before Ikki's reaction would be exactly what it is now: pure glee, clapping and leaning forward.

Airbending tricks are always the best! Ikki abandoned her parfait, leaning closer to her grandfather. ]

Cooooool! Hey, can you make them go in a figure eight? Can I try? Did you make it up yourself? Where'd you get the marbles?