Here's how easy it is: Get yourself some scrap black fleece (felt would work, too).
Using a piece of chalk, sketch an outline of a pirate patch.
Fold the piece in half, pin together and cut out your shape (that way you'll have two fleece pieces).
Find an elastic hair band or if you don't have one, just measure around your child's head and cut a piece of elastic that length.
Sandwich the elastic between your two pieces of fleece and pin together.
Sew around the perimeter of your patch. If you don't sew, you could also hot glue the two pieces together.
Now you're set. Get your costume on and play the part!
Hee hee. Ain't he just the greatest pirate!?
But really, he's just a softie.
These would work perfectly for a party favor at a Pirate themed party, too!
The other two had to get in on the action, too.
Arrghh!
Have fun!!