Costuming and security

[alexdelarge78.livejournal.com]

 Hi peeps, newbie question here, but it's something a little different for me this year.  Could somebody point me in the right direction for questions relating to security with costuming i.e 'is this acceptable'?  Most it is common sense, don't walk around with an unsheathed blade, don't point a gun at anyone.  My *thing* just requires a little more confirmation.

Thanks