HOWTO make a Storm Trooper helmet out of a milk jug

The delightfully named Filth Wizardry blog ("Sharing messy art and craft fun for preschoolers, with the help of my own filth wizards") has a great HOWTO for turning a gallon-sized milk-jug into a dashing Storm Trooper helmet: "

Milk Jug Storm Trooper Helmet

(Thanks to everyone who suggested this!)