The Human Cupholder

I present to you the Human Cupholder, a device that allows the wearer to carry any hot or cold drink or anything that fits inside (a cellphone, etc.) while holding other things such as a suitcase, toolbox, or portfolio. Never fear dropping your coffee again! No more hand cramps while trying to grab your jo and your toolbox simultaneously. No need for leaky thermoses, jamming your iced coffee into your backpack pocket, or skipping out on caffeine in the morning. Just insert the cupholder's "key"