Firework Rocket

Fireworks are items planned for 1.4.6. They were first planned for the Redstone Update, but Mojang wanted fireworks in the game before New Years. They first appeared in Snapshot 12w49a. Colors, fade, height, effects and shapes will be craftable. They can be fired out of dispensers to create a redstone powered fireworks display.

Crafting
You can also add several items to change the shape and the effects of the firework :

Gallery
Feuerwerk Feux d'artifice Ракета 烟花