Make fireworks with matterials?

I was looking on the guild wiki and I saw that you could use spirit wood and tempered glass vials to make fireworks, but it did'nt say where you could make them. Any ideas or is it in those guild only areas?

Interesting... that's news to me...

Got a link?

but there's no reward for blowing off fireworks, and no reasonable use for them. So, basically, it would be a crafting material "sink"... don't see that being very popular...

This was only for the Canthan New Year festival, I believe.

Yeha, sykoone is right. You could only make them during that event.