Concept 1- Inner tubing - the T-shirt would be shrink wrapped into a tube then
placed inside the bottle with the top attached.
Concept 2- bottom shirt moulding - the bottom of the bottle is shrink wrapped T-shirt in the form of a iconic coca-cola bottle. It is held together by another shrink wrap holding it in place.
Concept 3- Cup/ shirt combo bottle top - the Shrink wrap shirt is inside the cup which is made out of PP plastic and is screwed in place of the top of the bottle, protected by a security seal.