This is the most excruciatingly detailed record I have kept of my various giant papier-mache mask projects. This particular mask - a strange monster that I call the "Montessaurus" - was made for a preschool class at a local Montessori school. I made the mask, then a group of two dozen kids between the ages of three and six painted it. After that, it was auctioned off at a school fundraiser.
Step 1: Gather Materials
To make this mask, you'll need flour, water, white glue (optional), and lots of newspaper (I use The Onion because it's free).
Flour paste is made by whisking flour into water. That's all you really need! I like to add a but of white glue because I think it improves the finish, but that's up to you. You can make the paste as thick or as thin as you like; I personally like mine a little bit thick, sort of like pancake batter.
I used one large punch-ball balloon (those giant ones that come with a huge rubber band) and two tiny party balloons. You will also need duct tape, masking tape, and a hairdryer would be handy.