40K’s got a while to go, though.

The Last Question by Isaac Asimov might be an exception, depending on how you reckon time.

I’m being pedantic, but many are designed to take the lives of animals rather than people. Absurdly heavy precision .22 cal target rifles are clearly only for sport.

A few are designed to launch flares high into the air for communication. A very small number are designed to trigger avalanches under controlled conditions.