Bump-on-a-Log

He was a bump living on a log in the swamp of the Isle of Wonder. His brother Stick In The Mud would often tease him and throw things at him. Alexander gave him Rotten Tomato to throw at his brother in revenge. Bump threw tomato at stick, and both stick and tomato threw swamp ooze back at bump to get even. It was exactly the reaction that Alex wanted out of them, so that he could get the swamp ooze he needed for the magic paint spell.