Pingy looks like a grenade. But Pingy doesn't start fires: Pingy puts them out. Pingy is a fire extinguisher.
Fourteen centimeters long (5.5") and weighing 1 kilogram, the makers claim it holds enough foam to douse the "beginnings of a house fire." A great idea for those who don't want heavy clunking extinguishers in every room, but who also don't want to die horribly in an inferno. From England's Daily Mail:
Unfortunately, you can't use the UK30 extinguisher as a grenade, even if you want to, as it has a valve to stop it exploding under pressure.
Product Page [PinQy via Daily Mail]