I found this fun St. Patrick's Day spin on the classic treat here.
Simply make a batch of Rice Krispies treats, substituting Lucky Charms cereal for the Rice Krispies.
Here is the recipe:
Melt 3 tablespoons of butter over medium heat. Add a package of regular marshmallows (or 4 cups miniature marshmallows) and stir until smooth. Remove from heat, add six cups of cereal, and mix well. Fold into a buttered 9X12 inch pan. Cut into squares when completely cooled.
Give them a try! They're magically delicious!