There's definitely a vast difference between the designs of the OT and PT. the OT was grounded in some sense of practicality. McQuarrie came from a background working with NASA and Joe Johnson and crew seems to have an understanding of taking an idea and making it function. Chang in the PT was coming from a more Victorian design aesthetic, where image drove the final product. I don't think he had much application of taking his ideas from sketches into real objects. I also don't think that during the production of the PT, they would have said "that would make a great toy" because in many ways, everything was expected to become a toy. So it did mold the design process in a sense, but it wasn't a goal it was just a reality of the situation. These things we're going to become toys no matter what. none