Consumer-level quality is not a thing you can easily spec. You're going to give a 3D model to a manufacturer, and they'll put the parting lines, ejector pins an

Consumer-level quality is not a thing you can easily spec. You're going to give a 3D model to a manufacturer, and they'll put the parting lines, ejector pins and gates wherever is easiest/cheapest to manufacture, not where it'd minimize evidence of molding. You can then spend a lot of time learning about processes and redesigning your form to meet both cost and aesthetic requirements, or you can have someone with manufacturing experience iterating with you from the beginning.