A picture book manquÇ, consisting of hypothetical answers to the question posed by the title: Do fairies choose the sharpest teeth to make their saws? Or the roundest ones to make maraca sounds? On such inconclusive musings the story quickly fizzles: It has no backbone, and the ideas are not nearly imaginative enough to grab readers. The book is kept afloat by comic watercolors; endearingly messy fairies are busy in each scene, sincere in their efforts to make use of the horde. The premise suits children's sensibilities perfectly, but its execution lacks bite. (Picture book. 5-7)