Yes, from Thingiverse.
The props I've tried to replicate on thingiverse are taken from direct screenshots of the items I'm modeling, or where I'm lucky enough I can actually get reference shots of the prop itself. But that's not all I do. I also try to design original pieces that would take the timeline further than what was seen in movies and TV. Much of that is inspired by Star Trek online and from other trek video games, toys, etc.
That said, if my engineering tools are inaccurate please do show me what I can do to improve them. The engineering tools and soon medical instruments are a special interest of mine.