|First Appeared (cartoon)|
|First Appeared (books)|
Brain invents a tooth-removing machine in "Arthur's Tooth" to help Arthur get his loose tooth out. To demonstrate it, he places a pumpkin where the person's head is supposed to go. The machine crushes the pumpkin into goop and its claws snap at the remains. It escaped from Brain's basement and goes outside, but Brain makes it self-destruct before anyone gets hurt.