Bottle Opener Hats - Busch Bottle Opener Hat. This Officially Licensed Busch Bottle Opener Hat is the perfect way to always have a bottle opener on hand. This unique Busch hat features a built in brim mounted opener that is solid and secure. This patina finished bottle opener features the Busch and is fastened on a beautiful Navy, Vintage White & Red Official with Busch insignia. This hat is fully adjustable and features an adjustment band in the the back to adjust the hat to the perfect size for you.