i *highly* recommend stuffing a large tube sock into your pants, and snake it down your pant leg. they HAVE to wonder about it...

another thing to do is to act like it feels good as they are wanding and patting you down. it totally freaks em out, and they do it faster. try moaning, and saying, "oh YEAHHH! LOWER! DONT STOP!" they will want nothing more than to get you the heck on that plane.