It seems a little strange to brainstorm alone – I thought it was a group of people together brainstorming and sorting through the ideas. I use this tactic frequently but never alone.
I could see a “skit” performed mostly in audio and having a noir storyline – with the details of anything noir. Dark, stormy nights, a women in the mix, and the feeling of trouble coming.
I could also see even a discussion on Noir with questions and answers to help others understand and a short period to answer one or two of their questions.
Poetry can be very noir – readings of poetry or writing a noir poem.