I am selling vinyl/rhinestone heat transfers to a company who wants to place them on their own shirts. How, after weeding the vinyl do I package the design? The backing on the vinyl is sticky so I am trying to figure out how to make 12 designs without them all sticking together. Would wax paper work or is there something more professional that can be used to keep the designs separate. There will be three parts to the design, two vinyl parts and one rhinestone. Any help would be great.