I'v had the same happen to me, few years ago i sent some fly tying stuff to a young fellow up north into Canad, it took a while and ended costing me alot more than I thought, I even had to go back to the shipping office and add more money, alot more than I had thought it would... Bit in the end all was happen, but when crossing the border I have learned how you label what it is can add more expense or it not getting there all together...
"Because by the Grace of God I can, be on a beautiful mountain stream with a friend , have the water boil from a 12" Native Brookie taking a self tyed dry,and feel it on the end of my cane... It don't get no better than that..."