all you need is red and white form paper, hole puncher, scissors, grid paper, clear string, pencil and eraser
Step 1: Step One
on the white foam paper draw a rainbow shape design. cut the design out, (make sure they are even on both sides)
Step 2: Step Two
hole punch two small holes, this is where the strings will go.
Step 3: Step Three
on grid paper draw out a plus sign. 3x3 per square. cut the plus sign out and trace it onto the red foam paper.
Step 4: Step Four
with double sided taped attach the plus sign on the white foam.
Step 5: Step Five
pull the strings through the holes and place the hat on someones head and tie the strings tight enough so its a perfect fit.
Step 6: Finish Product
the hat should look something like this