Bobbington is a yellow elephant in the caves. He resides in room 22. He gives out the quest All Overblown in which you must find 10 balloons and show them to him.
"Helloaphant! I am Bobbington, one of the famous Bob Balloon Brothers! I am the most famous one, of course. I LOVE BALLOONS. I would love to see 10 BALLOONS if you find them, let me know!"