A blanket could be used as Concealment Revealer. It both conceals and reveals, like great dialogue. Here’s some great dialogue I wrote for two characters, Mr. Brick, and Ms. Blanket:
Mr. Brick: I like your dress
Ms. Blanket: I’m naked, you moron
Mr. Brick: Tuesdays make me vomit. What are you doing one minute after Monday at 11:59 PM?