I am currently using CO in a joint set up with a plugin called Rust ATM
Atm has a custom skin in which it uses the ItemID for the old item Paper. I have managed to transfer all of my vendor currency Id's to the Paper ItemId and had success with that however, I do not know how to get the skinID to work. Could anyone help with this? Where do I put the skinID to make it show actual money skin

  "ItemsAsCash": {
    "itemID": -1779183908,
    "ItemName": "Money",
    "skinID": 916068443

That would because the NPC Vending machines do not support SkinIDs, this is something I have already looked into. They are not the same as the Player Made Vending machines. which the same prefab model being used for that plugin. 

FastBurst

That would because the NPC Vending machines do not support SkinIDs, this is something I have already looked into. They are not the same as the Player Made Vending machines. which the same prefab model being used for that plugin. 

Thanks for that reply FastBurst, and yes I am also seeing now that this is not possible. What essentially I did was just changed the Vendor ItemId to Paper so that at the very least the Cash withdrawl system with the ATM works in unison with the Bandit Vendors. Looks a little silly but it does work