The top seller are the Bertie Bott's Every Flavour Beans, produced by Jelly Belly, specialists in jelly beans with amazing flavors. A delicious treat? Not necessarily - ever since the first book it's been clear these beans can also taste pretty disgusting. Some flavors: earthworm, rotten egg, soap, grass - even vomit. But with any luck, you might find something like melon, cotton candy or cherry.