Help me/teach me how to render NFT Character traits layers in Character Creator, Iray

Hi, I am trying to render some NFT traits for my character. I need to find out a way to render my traits (models) where the underneath parts won't be rendered. For example, My character is holding a bottle, and I want to render the botlle in way that , the parts which are underneath the hand grip wont be visible after the render. So that I can easily use that trait as a layer for my nft character. I am using character creator and I RAY. So your job would be to teach me ,how to do it.