Just crotch your gear and wear a studded belt with a big belt buckle. The wands are either way too sensitive or not sensitive enough. I've never had anything but my belt set off the wands and that only happened one time. I think you really need to have a big metal weapon to set those things off, and when they do get set off they just beep once and the person will ask you what it is. Show em your big belt buckle and they'll send you on through. Keep your cool and they really don't suspect a thing. You gotta remember that their job is to get thousands of people through the doors in a very timely fashion since most places are not letting folks in an hour before the gig starts. Unless they feel you pose a serious threat your not going to be hassled.
Wear 2 pair of skivvies and put everything between there, the jb3 in front of your manhood flat side on top, the rest by the twins. So get out there and do it, you'll be very glad you did!