
Visible crew/equipment: In the scene at the very end, Walter breaks into Jesse's house to take all of their product. As he leaves the kitchen, just as he passes the fridge, Jesse (passed out in this scene) or a crew member can be seen peeking around a doorframe. (00:46:25)

Visible crew/equipment: When Combo is watching a black car parked in front of him while he was dealing as the episode started (a few moments before he's killed), a stage light can be seen reflected in his sunglasses.
Continuity mistake: The candles on the cake at the party change height a few times during the sequence.
Continuity mistake: After Combo is killed and Skinny leaves the operation, Jesse and Walt are in Saul's office, explain what happened, and they start bickering. From a side angle you see Saul lean forward in his chair as he yells "Guys guys!" to try and stop them. It then cuts to an angle showing Saul from the front and he's suddenly leaning back in his chair, not forward.
Chosen answer: It is part of the ritual for la Santa Muerte. It is a sign of humility and sacrifice.
djm