Novelty fireworks are a category of fireworks designed to produce unique, entertaining, and often humorous effects, rather than traditional displays of colorful aerial explosions. These fireworks usually create smaller, more whimsical or surprising effects compared to larger, conventional fireworks used in big public shows. Some examples of novelty fireworks include:

1. Snakes: Small, black pellets that expand into a long, grayish snake-like shape when ignited. The effect is slow and non-explosive.

2. Party Poppers: Small, handheld fireworks that release a burst of confetti or streamers when pulled, often used during celebrations or parties.

3. Smoke Balls: These produce colored smoke when ignited, creating a fun visual display of colorful clouds.

4. Sparklers: Long sticks that emit a shower of sparks when lit. They are often popular during holidays and family celebrations.

5. Jumping Jacks: A small firework that skitters across the ground while emitting sparks and making a buzzing sound.

6. Fountains: Fireworks that produce a steady stream of sparks and flames, resembling a small fountain.

7. Whistling Rockets: Small rockets that whistle as they ascend before releasing a colorful effect or sound.

These fireworks are typically smaller, safer, and designed for individual use in backyard or small-scale celebrations, as opposed to large, aerial fireworks displays.