It is possible but it's not common. Each item has so many stops before it leaves that if its mislabeled or something it will almost always get caught. As for the weirdest thing, the weirdest I can currently recall is this: http://www.amazon.com/Sex-Mall%C2%AE-Short-Metal-Chastity-Device/dp/B00RREEZPS/ref=sr_1_2?ie=UTF8&qid=1427821473&sr=8-2&keywords=Chastity+belt