I didn't end up doing it, but I said a while back that the next time I flew, I was going to spell out "Hi TSA" in aluminum foil on my stomach and walk through the backscatter scanner.
Either that or "Are we safe now?", but probably the "Hi TSA" one. The other would take too much foil. I don't buy it in pallet loads like some folks.
Blessings,
Bill
Just cut one out in the shape of a fist giving them the finger. They'll get the idea.