I remember when Lucky Charms cereal added purple horseshoes to their menagerie of marshmallowy shapes, which speaks to either my vivid long-term memory or my sheltered upbringing.
Anyway, I mention this because inventor Tom Lombardi has developed a Lucky Charms Sifter to weed out those crunchy pieces and leave you with a bowl of nothing but sweet, sweet charms. It's one of the many nifty little devices people are developing using 3D printers these days, a few of which don't involve cereal
Tom's most important caveat, by the way: "Be careful to hide the sifter because it may anger others." This is especially true if you live in a leprechaun colony.