A quote from this trip report from B747-437B:

"During dinner, the conversation turned to security screening and Haley jokingly suggested that it would be fun to pack an adult toy in the bag just to see the screener's reaction. Never one to pass up a challenge, I agreed to try this for my trip back. Accordingly, we headed off to an adult store after dinner where I proceeded to purchase the most graphically packaged set of anal beads that I could find. The packaging featured an illustration of a naked woman inserting them into the appropriate orifice and the beads themselves were a horrendous bright pink. Perfect."

.. and ..

"I had placed the anal beads strategically near the top of the bag where you could not see them unless you moved my sweatshirt which was packed on top of it. Sure enough, the first thing this poor innocent girl moved was the sweatshirt, bringing her face to face with the beads. The look on her face was priceless as she let out a stifled scream, replaced the sweatshirt and quickly zipped up the bag without any further intrusions. Sorry honey, all is fair in love and war and President Bush said we are at war, right?"

http://flyertalk.com/forum/showthread.php?t=181384