Not with that attitude. If you've got a particularly slothful postal worker you might consider topping up your meitnerium with a similarly sized sample of roen

Not with that attitude. If you've got a particularly slothful postal worker you might consider topping up your meitnerium with a similarly sized sample of roentgenium-282. If you don't have any to hand then perhaps you'll have better luck producing tennessine-294 and waiting a couple of minutes. Amusingly your trip from Tennessee to x-ray land will take you via Moscow and Japan. (Beware that you might end up making the box bulge a bit, since you'll necessarily go over the size limit by including less dense materials as well as necessary apparatus.)