Hey OzBargain,
So I just published this Android app for finding upcoming fireworks in QLD that uses open data from the QLD government. It only shows firework displays in Queensland so sorry for those living elsewhere. Basically it shows fireworks on a map and a list that can be filtered by date, suburb, event type and fireworks type. It's completely free forever and no ads either. I've been working on it for a few months and its one of my first apps so I'm excited to share it with everyone. I appreciate any feedback and hope it's useful to someone.
I dunno, the number of illegal fireworks going off last year means we dont need to go to any official ones and just sit back in the back yard!