And here's an idea, not really well-detailed one, but talking of innocent children's games in the other thread (see Heads for a nice shota hanging story) reminded me of it, so I decided to post it.

Garage Party

(an idea of children torturing and snuffing each other as a fun game)

A group of kids in a garage explore different tools to find creative ways to hurt and kill themselves. Everyone has lots of fun.
- electric drill
- hammer and nails
- car battery (electrocution)
- pliers
- vise
- etc.
In the end anyone alive finish themselves with starting the car with the garage closed, so they suffocate of exhaust gas.

Damn, this had even less text than I thought. Anyway, as usual, feel free to use this idea for your fiction however you like.