Your definately not the only one. I released this bug shortly after the local CAA cache went active.
I focused mostly on making sure the cachers that find it know it's a traveler and decreasing it's collectableness, but I did also included the bugsheet in a ziploc bag. And yes, that's a metal tag attached through a hole drilled in the coin and the keyring is welded together.
I thought about taping a list of the states and some check boxes to the back of the metal tag, but didn't get around to it.
AR_kayaker
Your TB will have to pick up the pace, only done 0.9 of a mile so far.