Pretty much everyone who has a child or ever was a child is familiar with "The Wheels on the Bus", but did you know there is a sequel -- and, no I don't mean the fifty-odd verses that seem to go with the original. The sequel is -- you guessed it! -- The Seals on the Bus.
The Seals on the Bus, written by Lenny Holt, illustrated by G. Brian Karas, Henry Holt and Company, 2000. Preschool to Early Elementary
The Wheels on the Bus is a fun song. The Seals on the Bus is a funny book. If you know the tune for the first, you'll have no trouble singing the second. The illustrations are appropriately silly; this is not the place for realism. So funny book, great illustrations, kids love it -- need I say more?