Found this hat at the .99 store.

Cut off the blue strip.

Cut off brim. Trim to even the edges.

Turn hat upside down. Punch a hole inside the top of hat with the hammer and awl.

Find a spot outside protected by the wind and spray a coat of red paint evenly over hat. Allow to dry. Do this three to four times, allowing to dry between each coat.

Now to attach the tassel to the hat. I made this tassel with embroidery floss and a stretchy gold band.

Insert brad between the loop of the band, one prong on each side of band.

Insert into hole on top of the hat.

Push down...

Turn hat upside down and flatten prongs.

Don your hat, grab your sonic screwdriver and you are ready to time travel!