Aerial fireworks are illegal in Hawaii.
It's a big deal on the island of Oahu, and the police there vigilantly enforce the law. Before New Year's Eve, for example, the Honolulu Police Department released a statement and phone number for tipsters to snitch on their neighbors. This all probably sounds ridiculous to folks in Alabama, considering our love of fireworks superstores, but in Hawaii, Roman candles, rockets, exploding mortars, fountains, tubes, novelties, spinners, heck, even sparklers, are illegal.
The state can and will prosecute anyone caught "purchasing, possessing, storing, setting off, igniting or discharging aerial devices" with a felony that could lead to five years in prison.