At some point in almost every child's life, they have a Venus Fly Trap. A plant that can eat bugs is hard to beat. They can be tough to grow and are generally found as houseplants. Even though it's not considered a garden plant, it's such a favorite for children it had to be a part of this list. Just get a sharp pointed object like a pencil and gently touch the middle of the open trap and watch it clamp shut.