Hand cannon

A hand cannon is like a really big gun that someone can hold in their hand. It's kind of like a super strong and powerful toy, but it can also be very dangerous if it's not used the right way. People used to use hand cannons a long time ago in battles and wars, but nowadays they are mostly used for fun things like shooting at targets or in special competitions. But remember, it's important to never play with a hand cannon without a grown-up who knows how to use it safely!