Hey, I know this is a stretch, but someone one here might know. I'm in the US and I want to ship something to Australia to my girlfriend. The package needs to contain 3 items. A card, a pair of earrings, and a tin of Old Bay (a crab spice) that measures about 3"x3"x2". Is it best to cut a box down to size or get an envelope. I'm asking here, because I don't want everyone at the post office to kill me tomorrow.