Sometimes I write out the title, and then wait for it to tell me what it is.
Spray-Sort
One of the things that virtually godlike high-tech alien races soon learn to do is to regularly come up with entertaining shiny gimcracks with which to distract the rather less high-tech alien races. Why? Because the less-advanced races can still be aggravating, or even dangerous; and if you think that technological superiority is a perfect and flawless game-winner, contemplate whether the existence of tanks and nuclear warheads makes you, personally, any safer when somebody comes up and hits you over the head with a rock.