Stl file designs

I'm looking to purchase pre-designed stl files for 3D prints of multiple kinds of objects. I'm looking to use 3D printers for Legal production and sale of these items, and have specific sizes and concepts in mind. The 3D designs will need to be detailed and accurate for the best results in printing and quality assurance. I am open to suggestions if the particular look isn't attainable. Final models should be in the STL format so they can be easily printed with a 3D printer. I need more than 7 designs to make it worthwhile. I am willing to pay top dollar for quality projects. Please contact me for further details and specifics.