A new hostile mob added in 1.8!
The tutorial page also includes a word guide found in the comments.
EDIT: Original design scaled to fit perfectly on A4 paper. EDIT 2: Changed the order of all the pages and changed papercraft photo to a square 800 x 800 px image. EDIT 3: Changed the actual Guardian to be a square image at 800 x 800 px. EDIT 4: Changed the file sizes of each thumbnail.
Click on the papercraft design image.
Make sure it has not been resized by your browser (you might need to click the image again).
Print using your browser's Print function.