Run Time Plastic Shrink/Wrap , Mesh Manipulation

Hello everyone , I really need your help for this... I have to create plastic vacuum effect in run-time (I linked a photo to see what I mean) first I tried creating it with unity built-in cloth system plus some shader to simulate plastics , but my objects have different variations and collision detecting is important so they wont go through the plastic. and I also I need the plastic to somehow shrink around them so I guess I need to go with mesh manipulation and change vertices... but I have no experience in this matter...