Cool hats? I didn't get no stinkin' hat when I got me P.E. In fact, all I got was a number and the right to get an official stamp made. Oh, that and the privilige of paying the state $250 every other year so I can keep my P.E. license. Nevertheless, it is an accomplishment to be proud of (and necessary to offer engineering services to other than your employer). For me, the hardest part was finding the 5 other P.E.s for the recommendations. Not many P.E.s in my line of work (electronics).