If you are looking for a really fun project for kids. This is it. You do not have to have any electronic skills or try to figure out how to use a hot soldering iron around kids. These are fun to make, take very little time, and they are fun to show off. I carry an undecorated one around in my coat pocket. If there are any kids around, I'll pull it out, turn it on, set it on the hard floor, and enjoy their expressions.