Whenever I order an artisan pipe, and the customs label says "smoking pipe", as did the one I just received from Rad Davis, more often than not the customs folks open the package to inspect the contents. It's really getting quite annoying.
Growing up in England, I used to like Sherbet Fountain candy. It's this fine white fizzy sugar powder and has the consistency of confectioner's sugar. It comes in a little cardboard tube with a liquorice straw. After I'd emigrated to the States, my Nana sent me some and I think it was opened by every customs agent in Houston. Not sure why they kept feeling the need to open the box when it already had fifteen Inspected By stickers on it.