you can sorta do this without a new element though, you come up with a lot of good ideas ark5 but this particular 1 isnt nescecary.
i sorta made a way to fling fireworks to the side:
LoadSaveBlock(85095);

yew101
Yes, it does shoot Left / Right, but it would be better if there were something that only moved right. And didn't explode.

Awesome

We could just reprogram crackers steam train. Ctrl+> then alt gr to acesses the hidden menu.

yeah, like webb said, maybe the angle of the fireworks direction can be controlled like fan.