In the words of the song, "He's making a list, he's checking it twice". Actually, not any more. With so many children in the world, Santa and his elves need the help of their top secret gadget which will tell them "who's naughty and who's nice." Put your hand on the machine and it'll tell the elves what category you fall into! Of course, the machine is always used sensitively, and the elves will not upset your child! A strolling show ideal for Christmas lights switch ons and other festive events.