This new from the Guardian: Emily Gravett, who last week won the Great Britain's most prestigious children's illustration award, had collaborators: a pair of rats named Button and Mr Moo. Starting on Little Mouse's Big Book of Fears, Gravett wanted to make paper look as though it had been nibbled. She spread yogurt on pieces of paper and left them in the rats' cage. A few days later, she retrieved a chewed up, peed-on sheet. She then scanned it and used that image, overlaying it on a more textured sheet to create the look she wanted, according to the Guardian. The chair of the award judges praised the book's "smell, texture, humour and great imagination." Did she say smell?