Beautiful bright fireworks which can run anywhere!
Run real fireworks are quite expensive, and even equipment safety standards must be observed. Not to hammer head with all this, simply use a hologram of fireworks in 3D. Rotate the phone to see the hologram of fireworks from all sides.
Entertain friends new tricks, tell them that you can start the fireworks right in the room! Calm them when they start to worry that this is just a hologram, and it is absolutely safe.