......After consulting among themselves, they decided the head was not a prohibited item
Here-in lies the crux of the matter... screeners consulting among themselves and deciding whether something they have never seen before might be in fact "prohibited". If it is not an IED or real weapon (nevermind the bottle of water or a sharp sticky thing) then why should it be "prohibited"?
The real risk here is in getting a screener so confused that it might make it's little head explode. Still... I doubt that would be much of a risk to aviation.
