They are the kind that go bang, have trinkets, Jones, and paper crowns inside. You don't eat these kind of crackers.
Nice. We'll be firing off the blackpowder mini .50 caliber cannon and blackpowder golf ball mortar again this New Year's Eve. We'll be home so no projectiles will be launched this year. Our neighbors several blocks over might not like golf balls landing on their roofs.
I'm not sure that these fall under the fireworks category, and certainly not under "the good stuff" category.
For just a fleeting minute I had an entirely different meaning to the word Cracker - not edible either.