WOW. This literally came up in my Facebook feed and I thought, hmm - If I could actually cook, I'd actually attempt to do this. But hey, if you can cook, kudos to you!
Here's an awesome recipe for making Lucky Charms PIE! You basically blend up the cereal itself, mix marshmallows with food coloring, and freeze. It's that simple.
It looks magically delicious - Let me know if you give it a try!