Lucky Charms cereal is bringing back their bags of marshmallows-only, and they're HUGE! They're selling full sized marshmallows in those famous shapes, red hearts, yellow stars, green clovers and blue moons! They posted on Instagram that the marshmallows are "Magically delicious in EVERY form!" You're gonna need a bigger bowl! Ok...there's no cereal in there, so you'll have to add your own.