We spent a couple hours at a friend's house and saw some fireworks on New Year's Eve.
I brought my Linhof MT and 75mm Biogon to try some photos. I was experimenting with de-focusing the image when (some) of the fireworks went off but it didn't really work. I think because I defocused it too much. I'll have to try again next time.
Here's the photos though, on Kodak Portra 160VC:
I also took this funny picture with my Leica M9 and 12mm Voigtlander Heliar, only a foot away from some bottle rockets: