Get in the spirit of Halloween with fun printable activities from Monsters University! Check out these Monstrous Halloween activities and recipes! Make spooky smoothies like Mike’s Green Mango Muck or Sully’s Boo-Berry Scare. Learn how to make your own Mike Wazowski Monster Lantern (complete with carving template)! Find cool Monsters U. decorating templates and more. Your house will be ship-shape for Halloween in no time!