I can't even list all that's in my vest right now as I haven't decided yet.
I will say that before I purged my vest before season last year it weighed in at a hefty 9 lbs and I had to drop some stuff. I just had way too much stuff and was not using half of it, yet felt I had to have it with me. No need for 5 different tube calls for instance.
I alternate what I take without duplication unless I am looking for a specific tone in something that I don't have in another (i.e. I usually carry 2 box calls: 1 longbox, 1 box.) mouthcalls are a given, got plenty of dups with those, and three different slates (glass over slate, a Dad's Do-Dad, and maybe a crystal)
My Permar 1920 African Blackwood, an Osage Brian Mero, and my trusty Buice in Snakewood always go with me as well as my Open Biscuit, muted Biscuit, and my Strumpet.
You can never have too many calls right?
If you told me I could not carry a vest, I would carry my, mouth calls, the DO-Dad, all trumpets, the Corbett calls, and the box call. That would all fit into or around my leg pockets and neck right?