Durable Investor-Ready Prototype

I’m preparing a round of face-to-face pitches and need a rugged physical model that looks and feels like the final product while standing up to repeated handling, shipping, and live demos. The sole objective... (Budget: ₹100 - ₹400 INR, Jobs: 3D CAD, 3D Printing, AutoCAD, CAD/CAM, CNC, Product Design, Solidworks)