If you do even a little bit of woodworking and you have young children, there may come a time when their after-school group, cub scout or girl scout group will ask you to teach a short woodworking class. This can either be a great way to give kids a taste of woodworking, or will leave them bored and frustrated.
For most kids this will be the first time they have ever done any woodworking and will likely be their only time. Kids have other interests and your job is just to give them a hint of inspiration. Any project you can make yourself in under 5 minutes is a good candidate. Keep it that simple.