<P> Recent changes to the marshmallows include the star shape taking on a "star" design, the orange five - pointed star being complemented by a white "trail ." In late 2005, another marshmallow shape was added, the "Hidden Key". It is a solid yellow marshmallow that resembles an arched door (similar to the shape of a tombstone; flat at the bottom, flat sides with a round top). When liquid is added to the cereal, the sugar in the marshmallow dissolves and the shape of a skeleton key appears "as if by magic ." The tagline was, "Unlock the door with milk!" This "new" marshmallow type has been used in other hot and cold cereals, but with mixed success (from characters "hidden" inside a bigger marshmallow to letters appearing). In early June 2006, General Mills introduced Magic Mirror marshmallows . In 2008, yellow and orange hourglass marshmallows were introduced with the marketing tagline of, "The Hourglass Charm has the power to Stop Time * Speed Up Time * Reverse Time". As of 2011, swirled marshmallows and rainbow - colored stars have been introduced . In 2018, for the first time in ten years Lucky Charms retired a marshmallow, which was the hourglass, and added a new permanent marshmallow, the Magical Unicorn . Its powers are unknown . </P> <P> The marshmallows are meant to represent Lucky's magical charms, each with their own special meaning or "power ." The following are explanations of the permanent marshmallows: </P> <Ol> <Li> Hearts - power to bring things to life </Li> <Li> Shooting Stars - power to fly </Li> <Li> Horseshoes - power to speed things up </Li> <Li> Green Clovers - luck, but you will never know what kind of luck you will get </Li> <Li> Blue Moons - power of invisibility </Li> <Li> Rainbows - instantaneous travel from place to place </Li> <Li> Red Balloons - power to make things float </Li> <Li> Unicorn - according to the inaugural cereal box, unicorns can "cleanse water with a touch of their horn," "heal whatever troubles you," and "always know when you are telling the truth" </Li> </Ol> <Li> Hearts - power to bring things to life </Li>

What are the new marshmallows in lucky charms