I got this hat from the Walking Dead Booth in NYCC where they premiered the trailer before the show started on AMC. It's signed by Robert Kirkman but he decided to sign it in black sharpie instead of silver even after asking him to use it.  He signed on the brim. It's barely visible if at all so I am selling this as if it doesn't exist. Just know it's signed.

I was there he didn't care.