Our best-selling scratch 'n' sniff Fart Books offer a unique and pungent sensory Our best-selling scratch 'n' sniff Fart Books experience that is sure to tickle your funny offer a unique and pungent sensory bone! Each spread features a different experience that is sure to tickle your funny character, a flap to lift and a delicious smell bone! Our scratch 'n' sniff books are perfect for books are perfect for story time with the story time with the whole family whilst encouraging curiosity, whole family whilst encouraging curiosity, imagination and sensory development. imagination and sensory development.