Alan, that is one cool idea you had there. I too hope that the authorities don't get the wrong idea.
Had you seen anything like this before. I know nothing about sailing or the boat that you have, but it seems that this would be very marketable if there are others like you looking for a simialr solution. I'm sold on the name!
Those I have seen before all use basic pipe with standard pvc pipe caps. They have to slide their sails in from the end. None were decorated like torpedos.