Looking for customized earbuds

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I'm very interested in partnering with a manufacturer in the ear plug industry, for an exciting and new innovative product design.
See the attached photo which shows the loop-style ear plugs. I would want to take this design a step further and combine the noise-canceling benefits of a foam tip, plus the silicone loop, all as one reusable unit.
Can you let me know if you think you could create such a product?
This has the potential to sell 10,000s units every month if achievable and so I think it would be massively worth the effort to create a new product that can combine the foam tip with the silicone loop design. Please let me know any designs you might have, and any associated costs of producing a prototype
Many thanks
Ramin