Things You'll Need:
- Green craft foam
- Green ribbon
- Hot glue gun
- Scissors
- Ruler
- Plastic shamrock charm (optional)
- Green bead necklaces (optional)
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Step 1
Measure the circumference around your head to calculate the inside size of the hat. Add about 1/2 inch to the total to make sure the hat fits loosely over your head.
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Step 2
Draw a circle that is the same size as your head, and then draw an additional one (about 2 to 3 inches larger) around it. This will form the brim of the hat, so make sure it fits properly and comfortably. For most people, this will turn out to be 7 inches on the inside and 10 inches on the outside.
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Step 3
Use a ruler to draw a rectangle of 6 inches by 5 inches. Cut out the rectangle, making sure you have a nice steady line.
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Step 4
Roll the rectangle, and glue the ends so it becomes a pipe shape.
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Step 5
Glue the pipe to the brim of the hat, making sure you join the parts from the inside, so the final product looks polished.
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Step 6
Wait for the glue to set and cool down, and then roll the green ribbon or bead necklace around the base of the hat so it hides the place where the two parts are joining. You can simply roll the ribbon around, and then tie it up on a knot, or use your glue gun to make sure everything stays in place.
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Step 7
Add special accessories, such as plastic shamrocks or lucky charms, to the ends of the ribbon.














