Bobble, Bobble, Soil and Rubble

Bubble, Bubble, Soil and Rubble is a challenge in Subconscious worth 5 Badass points. To complete this challenge, the Vault Hunter must shoot the mask off of a gigantic Jack Bobble-head.

Strategy
The Jack Bobblehead is encountered during the storyline mission END OF LINE, where the Vault Hunters must defeat Hope and Self-Esteem to free them from a corrupting influence. The mask is attached at three points: one on the chin, and two right above Jack's eyebrows. Simply shooting each connection point with any weapon will cause the mask to fall off and complete the challenge.

Trivia

 * The challenge title is a reference to a line from Shakespeare's Macbeth, Act 4 Scene 1: "Double, double toil and trouble"