A CLASSIC Halloween prank. The Magic Light Bulb made famous by Uncle Fester from The Addams Family! This is a push button model that can be lit in the hand or the mouth! Just push the button with your finger or tongue and it lights up! No one will ever know!! Made of perfectly safe plastic, it comes with watch batteries that can be easily replaced when needed. Ready to use right out of the box! Guaranteed to bring laughs and smiles for MANY Halloweens to come.