Was That Your Bottom, Bear? - Sam Taplin, Usborne Publishing

Press the buttons in this hilarious sound book to hear just how noisy a bear's bottom can be! With fun rhyming text and lively illustrations by the brilliant Ana Martin Larranaga, giggles are guaranteed. On the first four pages you meet not only the bear but a variety of other parping woodland animals, and then at the end, just when you thought it couldn't get any funnier, they all let rip at once.