My DS 12 got an Indiana Jones hat last month. They sell them at DHS outside the Indiana Jones show. If you're facing the entrance they are on the right at two carts. There are a few different styles. He chose a hat for $42. It is made of "Wool felt" and the tag states it is water repellant and crushable. It has a tiny plate with Indiana Jones marked on it. Its a nice quality hat. He wore it the rest of the day, but I thought he would be too hot so did not let him wear it the rest of the trip. He has worn it almost everyday since he returned home.
We bought it after the show, but I wish we'd bought it before because at the end of the show he went down and got his photo taken and an autograph with Indiana Jones' stunt double from the show and Marion's stunt double.
He also got a little Mickey mouse wearing an Indiana Jones outfit. As others posted they have a lot of fun Indiana Jones items for sale!
Here's a photo zoomed in on him with his hat.
Kathy