Five Custom 3D Print Designs

I need a set of five print-ready models created from scratch and supplied as STL (or comparable) files: • 1 simple coaster back that will represents the college, optimized for a quick, support-free print... (Budget: $30 - $250 USD, Jobs: 3D CAD, 3D Design, 3D File Scaling, Slicing & Print Preparation, 3D Graphic Design, 3D Modelling, 3D Print Design, 3D Printing, 3D Rendering, Graphic Design)