the top of the hat, leaving the 1/2-inch overhang all the way around. don't leave the iron on the fabric too long or the hot glue you used to construct the hat will melt, and be careful not to burn your fingers.
6. snip the overhang every 1/2 inch or so. now go back to the iron and iron down each little “spoke” of the overhang created by the snip. this will form a smooth top with a nice corner.
7. place the hat on the remaining fabric and draw around the edge. cut just inside this line to form an oval just the size of the hat. hot glue this oval 