O-Zooka
A 2-liter soda bottle with a hole burned in the bottom, filled with smoke, and used to blow out smoky rings like you're trying to annoy the entire neighborhood.
I blew a smoke ring so strong, my neighbor’s dog ran away screaming.
My O-Zooka made my teacher cough so hard, she fell off her chair.
I used it during lunch and got suspended for being a smoky terrorist.