I want a cup holder that can handle everything from a narrow soda can to a large travel mug, then cling firmly to almost any smooth tabletop so it never tips or slides. The attachment method must be a suction cup and the body itself should be molded from silicone for flexibility and grip. Here’s what I need from you: • Concept development – show how a single silicone form can adapt to multiple cup diameters and still remain compact when not in use. • Suction-cup integration – specify size, pull-off force, and placement so the holder stays anchored during bumps and light tugs. • 3D CAD files (STEP or STL) – ready for rapid prototyping or injection-mold tooling. • Manufacturing notes – recommended silicone shore hardness, wall thickness, and any over-molding or insert considerations to bond the suction cup securely. • Simple stress or tipping analysis – a quick calculation or simulation proving it won’t overturn with a full 500 ml drink. • Assembly / usage instructions – a one-page graphic or concise text that shows how to attach, detach, and clean the holder. Please send a detailed project proposal outlining your approach, milestones, and any similar products you have taken from idea to prototype. I’ll review the plan, choose the best fit, and get started right away.