Re: Iaito and bokkens @ Airport customs
I've heard someone suggest calling your weapons "Practice Sticks." That seems to be a fair assesment to me and should work. The hard case golf bag is a good idea as you can COUNT on a gun case being checked.
One thought that I had was to contact the sensei of the dojo you plan to visit and ask to FedEx your weapons to him and if that's okay... send it over night. That way, it could be tracked, insured and delivered with very little lip service about the contents. At least... that's my idea. Never had the opportunity to try it, but it feels sound.