If you're planning to be an alien Starfleet officer, and youre serious about your makeup, here is a company that can meet your needs:
They can do custom makeup and prop fabrication too. They created the "Guardian of Forever" prop for the "Gods and Men" fan film. Also, the "Romulan" featured on the site is "Picard" impersonator Giles Ashton, who will be seen in an upcoming USS Intrepid fan film.
ps - Download the pdf manual on how to apply special fx makeup! It will help you do a professional job!