Anyone who has ever watched young children playing battle games with their toys will laugh out loud at the hilarious toy battle scenes in Shark vs Train (written by Chris Barton, illustrated by Tom Lichtenheld).
The illustrations are vibrant, full of action, and the facial expressions are hilarious.
I'd suggest this book for 4-8 year olds, but don't let that restrict you - both my children (aged 10 & 8) thoroughly loved reading it aloud using all sorts of crazy voices as the battles got more intense (between Shark & Train that is!).
Big Rabbit's Bad Mood (written by Ramona Badescu, illustrated by Delphine Durand) is another great book, with hilariously quirky illustrations.
Big Rabbit has a bad mood with attitude, and it won't leave him alone. Everything Big Rabbit tries to do is ruined by the "big, bad, hairy mood that stuck to him like glue". Children will easily relate to this persistently annoying bad mood that lies about on the sofa, eats chips and leaves its boogers on the carpet! Eventually Big Rabbit takes charge and shows his bad mood the door.
This is a sure fire hit with 3-6 year olds, and anyone else who has ever had a bad mood with attitude.