I didn't really get what the big blue dildo was supposed to signal? That in this version she never moved on from John like she did in the comic and movie?
The writer Lila Byock, who also recruited Jean Smart, explained it in an interview.
To Byock, the blue dildo represents Laurie's own kind of "nostalgia for her sexual past."
"She's somebody who is so insistent about not being nostalgic and not having any reverence for her past as a costumed adventurer, and yet when she is all alone, we learn that she gets off literally by thinking about her past," Byock says. It's the opposite of the way she deals with her FBI underling Dale Petey's (Dustin Ingram) questions about her past at work, "although she does have him put on his mask when they have sex."
Lindelof dispatched Byock to take the actor out for martinis and convince her to take the job.
"It was the greatest moment of my life as a television writer," Byock says. "I think she was inclined to do it. She just wanted to understand what it is that's driving Laurie, what is this complicated mixture between someone who is both at war with her past and erotically interested in her past. She just wanted to hear me talk about it in a convincing way, over vodka and vermouth."