Really big sparklers

The fireworks continued on Monday, even after the holiday weekend officially ended, as workers prepared the window bays for the next step.
These sparks are a little bigger than what you might get from the sparklers you buy at a roadside fireworks stand, at least the ones here in Maryland.
For those who are familiar with the drive down south aloong I-95 and the fireworks stands that line the exits, this logo may look familiar (as one of three boys in the back seat during family trips down to Florida, it brings back many memories...):