Play station kid saves lives.

You’ve all seen those quad copter drones, imagine one of them at your beach and when someone’s in trouble in the surf, the quad rips out there and drops them a life vest

way faster than a lifeguard swimming, and could drop multiple vests and be piloted by one of those slack jawed computer game kids

install a camera as well 

You need a job

 ideas always sound lame first time round then you see it done elsewhere and then

the concept looks brilliant