USB Dogtag!!
Hello! This is a dogtag with a hidden compartment inside for a usb drive. You'll need a small nut and bold to put it together. The two halves rotate to open. I've included the top plate with a design for using this as a medic alert tag, and a blank one as well (can't wait to see some custom versions!) The back of the base is also blank, and could be used for name, birthday, etc.
Enjoy!