Bargain Hunter: General Mills is holding a Lucky Charms Marshmallow Only contest

General Mills has launched a Lucky Charms Marshmallow Only promotion and will be giving away 15,000 boxes of Lucky Charms filled with rainbow and unicorn marshmallows. You can win one by purchasing a specially marked box of Lucky Charms, then entering the code from its inside panel at www.marshmallowonly.com. Winners will be shipped one of the limited-edition boxes and receive membership in the Lucky Charms Marshmallow Only Club. You must be 18 or older to participate. Contest ends this summer.