A couple of pieces from my collection:
Screen-Used Pyro X-Wing miniature Engine and S-Foil Cannon and Cannon Tip (ANH):
Screen-Used Death Star Surface Section (ANH):
Screen-Used Death Star Surface Section (ROTJ):
Production-Made Chewbacca Teeth (ANH):
Screen-Used Vader's FX-6 Medical Droid Arm (ROTS):
Production-Made TIE Interceptor Pyro Miniature Wings (ROTJ):
Much more at my site in my signature link.
Cheers,
Niall