Print the tracers and cut them out. Use them to trace your shapes on the craft foam.
*NOTE: When you trace the green shapes, trace them on one side of the craft foam. Then you'll have a long , thin piece left over, which is what you'll use to wrap the hat around your head.

Once you've traced all the shapes, cut them out.

Glue the green rectangle to the front of the hat, then add the black rectangle right above it..

You may need to trim the edges of the black strip to even it up with the hat.

Now glue the gold square to the front of the black strip, and add the small black square in the center.

Finally, attach the beard. Glue it low to the back of the hat so that there's enough room for little "leprechaun" faces to peek through.

You can even decorate the hat a little more. I added some gold shamrocks that I cut from this St. Patrick's Day trim.