I was just playing around with the new fireworks, and came up with this.
This is a randomized fireworks display that will shoot anywhere from 25 to 125 fireworks, and then ending of with a big finale. Everything is automated with redstone and command blocks, so you just have to click a button and enjoy the show.
I have optimized all the components used, so the system is infinitely expandable. The system takes advantage of some redstone bugs, and might not work in the planned 1.5 Redstone Update. To experience the show as intended, it is recommended that you use Minecraft version 1.4.6.
The show is not a one time use, and can be used from 1 to 1143 times. All information about that below.
Screenshots from the show:
Map: Download (Direct) Download (Adfly)
Schematic: Download (Direct) Download (Adfly)