Foomf asks, "Have you ever created models, or art of Traveller spacecraft?"
The answer to this is yes. Unfortunately, I have no proof.
Most of the spacecraft art, whether two, or three dimensional, that I've made for Traveller over the years was made long ago. It's been at least 10-15 years since I've made anything of a model-kit, or original illustration nature.
Never particularly good at drawing Science Fiction vehicles (especially starships), and yet loving them to pieces, I would most often use already existing art found in books, and magazines. Eventually I met other gaming friends better at illustrating spacecraft, and left the depictions to them.
I am pretty good at imagining, and designing ships, just not getting them on paper.
As my modeling skills improved, and I started to customize Japanese Robot models more, and more, I tried my hand at customizing Star Trek, and Star Wars models. I sold a battle damaged Klingon K'Tinga that I'd made, which originally hung down from the ceiling in the old Forbidden Planet comic book store here in New York. I later sold a customized A-Wing fighter diorama that included miniatures originally made for Star Wars D6.
By the time I started college I had begun creating kit-bashed speeder vehicles, and shuttles for Traveller, but this was around 1989-1990. We did not have cameras in our pockets like we do now, and so I never took pictures of any of my work. I also never kept any of it, since I rarely used miniatures in my own games. Instead, as with the K'Tinga, and the A-Wing, I made it a habit of selling my pieces to supplement my income.
So, the answer to the question is yes, I have made models of original ship designs, but no such works remain in my possession, and no photos exist of them that I am aware of.
You'll just have to take my word for it.