1. Dog tags - they were free with my enlistment, and do have name, medical alert, and blood type.
2. Whistle.
3. Blank dog tag, polished mirror smooth to be used as a... mirrror.
4. $20, folded flat and placed between mirror dog tag and another dog tag and held together with dog tag silencer.

All of this is on a GI ball chain (which is not to be confused with the ball AND chain, which I also EDC most days...

Rest of the EDC is in my pockets, and listed (quite a few times) in other thread posts.

.....CLIFF
(like, who else?)