Improve my custom-fit cars sun shade product

Hi All, I design custom-fit cars sunshades and I want to improve the design by allowing the users to install and remove an extra layer of mesh easily if they want darker or lighter look. I already have some ideas but I need some consultations from people who have a very good sense of products design. This job is only one-hour consulting job to come up with solutions and I prefer to hire people from Melbourne, Australia so I can send them a sample of my product before the consulting session. After the session, we might agree on designing the prototype as another new job. Thanks!