Hello! If what you need, exactly, are new designs and 3D renders of buttons in the style of your examples, I'd love to help and chat about any ideas you already have for them.
Please feel invited to check my portfolio here on Freelancer ( https://www.freelancer.com/u/MatiasDupuy ) and contact me. Again, I'd be more than happy to be a part of this project, which seems something original and open to creativity.
I hope to hear from you soon. Until then, best regards.
Matías