Cereal Boxes. Here’s our new and improved image of this super-popular puzzle with all new artwork from General Mills. Imagine yourself watching Saturday morning cartoons with a heaping bowl of Cocoa Puffs, Kix, or Lucky Charms. Perhaps you’re a bit more mature and prefer Cheerios, Total, or Wheaties – but never forget, Silly Rabbit, Trix Are For Kids! 1,000 pieces with a finished size 24″ x 30″.