A bag of Bertie Bott's Every Flavor Beans. "You want to be careful with those," Ron warned Harry. "When they say every flavor, they mean every flavor - you know, you get all the ordinary ones like chocolate and peppermint and marmalade, but then you can get spinach and liver and tripe. George reckons he had a booger-flavored one once."
Ron picked up a green bean, looked at it carefully, and bit into a corner.
"Bleaaargh - see? Sprouts.

Author: J.K. Rowling