A friend of mine told me that fireworks shots were being requested, and so I figured I'd contribute one of my favorites from this year. It's somewhat different, as you'll see...
Civil War Meets Chinese Gunpowder by
Skorobeus on Zooomr
What you have there is a Civil War era "Hale" Rocket Launcher (one of a handful of originals left on the planet) being used to fire some run of the mill amateur fireworks.
(Yes, that's a real cannon in the background, yes we fired it and yes I have photos)
The flash was used to expose the lower portion of the frame and the shutter was held open until the rocket reported (about 4 seconds overall).
The EXIF data is available on the linked page, for the interested.