Grab a box and set your little leprechauns loose with paper, glue, and markers. We love this creative setup by Kellie from The Suburban Soapbox if you need inspiration. Make Chocolate Sprinkle Doughnuts: Dip the tops of O-shaped cereal into melted dark or white chocolate (the tines of a fork work well for this) and cover with sprinkles. Make Cinnamon Sugar Doughnuts: Over medium-high heat, dissolve 1/2 cup sugar in 1/2 cup water. Let cool. Dip the Os, a few at a time, in the syrup, then toss them in a small bowl of cinnamon sugar.