Children love to play – and many a time, it is through play that they learn many fundamental lessons in life. Having said that, some children with a more artistic bent tend to role play, which means different characters would require a change in voices. How about helping them along this rite of passage with the $17.99 Monster Voice Changer? This awesome Monster Voice Changer will be able to morph any voice into something insanely silly, and it works great with adults as well. All that you need to do is to switch the on button, press one of the three voices, and speak into the mic. Of course, when your children grow up and hit puberty, you literally have a hormone-laden monster whose voice undergoes change, too.