Korra: You have a battleship?
Varrick: Of course I do! I bought the first one they made! Named her the Zhu Li.
Bolin: You named your battleship after your assistant?
Varrick: Yep! They're both cold, heartless war machines.
When Lin lifts the rocks around the house in the final scene, there are eleven of them. But in the last shot, there are only eight rocks.