Go to the plant where Cat assembles their paving equipment in Brooklyn Park, Minnesota and you'll get two! Now, we were enrolled in a week long training program on their F Series pavers in order to get that tour, and I don't know how readily available such tours are to the general public.
Our dealer set us up with a tour of the dozer assembly plant (D6 and up) in Peoria a number of years ago. I don't remember what hat we received, but I sure enjoyed the tour!