For a limited time, General Mills is selling Lucky Charms mixed with Cinnamon Toast Crunch . . . in one box. Well, technically two . . . there’s a mid-size box for $2.50, and a family-size for $3.99. It’s unclear how long it’ll be available. In addition, General Mills is also bringing back its limited-edition Reese’s Puffs Bunnies cereal, just in time for Easter. Look for it beginning in late February.