This was a novel idea once. But nowadays I would stay away from plugging in a usb device of someone I just met.
If you can’t bring yourself to connect a USB device from your embedded systems engineer then you shouldn’t be working with that person. You’re also going to have a difficult time working with them on just about any product.
Maybe just appreciate this for what it is: A novel business card.
As a gimmick for highly likely prospectives (or, alternately, a thank you for current clients) this is absolutely at a price point of "have 50 spun via pick and place" to have on hand.
It can be exchanged for goods and services.