Ask HN: What Product to Build with Drones?

>What would be a great idea? We really liked the news about "drones planting 1 billion trees" or "drones doing surveillance of sharks in the bays".

Combine the two. "Drones planting 1 billion sharks in the bays"

Love it. Will start in California, we don't need this in Australia at the moment!

Fireworks laser. One drone with tons of lasers on it that can paint amazing colors in the sky. Maybe a cluster of these drones for added effects.

Drones picking up trash would be cool, but maybe infeasible.

Photographic/video lighting.