Multi-Material Pram Cup Holder CAD

I need production-ready CAD files for a pram (stroller) cup holder that will keep drinks upright while the buggy bounces along. Experience with gimbal-style mechanisms is essential because the design must allow the cup to self-level on uneven terrain... (Budget: $30 - $250 AUD, Jobs: 3D Printing & Rapid Prototyping, Bill of Materials (BOM) Analysis, CAD / SolidWorks, CAD/CAM, Manufacturing Design, Product Design, Solidworks)