Visible crew/equipment: When they show Elle's face from inside the toilet you can see Plexiglas between her face and the camera. You can also see a round outline in the Plexiglas that I presume is the reflection of a camera lens. (01:16:20)
Visible crew/equipment: When Budd is being fired by his boss at the strip club, you can see the boom reflected in the boss's sunglasses.
Answer: It's a piece of white lotus blossom. The wuxia film "Fist of the White Lotus" is the one where Pai Mei acquires his skills and power.
LorgSkyegon