Here's Bertie's amazing Thurlestone costume from Oliver and the Seawigs!
Here's an excellent Jeremy Moonbottom from Jinks & O'Hare Funfair Repair, created by Henry! He even brought a Rustler into school, which created quite a stir!
But World Book Day isn't all about costumes, it's ultimately about books! And costume or no costume, these kind of messages are the kind writers and illustrators love to see!